The contestants arrived in the Biggest Loser studio for an emotional reunion, wowing the audience with their new looks and confidence. Michelle gave an incredible vocal performance, backed by James on the piano, whose staggering new figure showed how hard he’d been working on the outside. The Eliminated contestants weighed in, with Lydia dropping the biggest number, a massive 63.1kg and winning the $20,000 prize for her efforts. Brenda and Kasey each lost massive numbers, but it was Alex and Margie who took the top spots. Alex’s fantastic result was a 72.2kg loss, but it wasn’t enough to beat Margie’s 73.2kg, winning her the $220,000 first prize and the title of Biggest Loser 2012 champion.

One by one, the contestants headed into the Cage to fight the trainers for ten minute sessions, finding reserves of strength that showed just how far each of them have come. Tensions were high as the Weigh-In commenced, with all four contenders dropping impressive numbers. Yet it was Margie and Kasey who fell below the Yellow Line, leaving them at the mercy of Alex and Brenda. Hayley then revealed that in a case of history repeated, they could chose not to vote anyone out if they wished. Surprisingly, both took that option, leaving all four players left to contest Finale.

In the final Biggest Loser Singles Thursday night special for the season, we saw Graham maintaining his exercise routine using techniques that Commando would be proud of. He also especially ordered in some truck tyres to help him with his training. Some extra behind the scenes footage showed Alex giving it all back to Commando that left him feeling unusually out of control. Sammy sneaks into Camp Biggest Loser to have a chat with the remaining contestants and Trainers. Kasey shows Sammy her secret doll collection that represents her family members. Margie’s bedside shrine to Michelle is exposed as Margie confesses is her secret training weapon. Dr Norman Swan caught up with Graham and revealed his Bio Age has dropped from 54 to 43. The Trainers go head-to-head as Shannan and Commando do a number of tests that determined who is top dog. Commando’s Bio Age proves to be one year younger than Shannan.

The Trainers arranged some special Trainers for the remaining contestants. John Eales teamed up with Margie, Nat Cook with Kasey, Bob from Series Four with Alex and Eamon Sullivan teamed up with Brenda. It was a case of déjà vu for the remaining contestants as they hit the slippery slopes of Valley Stampede Challenge once again. This time, they were tied together to their respective trainer. The light hearted competition had the contestants go through hell as they crawled, climbed and swam through a muddy obstacle course. Team Margie crossed the finish line first, followed by Brenda and Shannan, and then came Kasey and Tiffiny, followed by Alex and Commando. As the contestants crossed the finish line, they were met with some familiar faces as the contestants looked to their past to see what they no longer wanted for their future. Each contestant was given a DVD of their audition tape and asked to watch it and vow never to fall into those people again.

Alex went Commando style on the poor helpless clients at Train Australia and made Commando proud. Alex’s new Bio Age was revealed having reduced from 71 to 54 years. Margie got into some secret training with Michelle and tried to throw the others off her scent. The contestants were then surprised with the MasterChef himself, Michael Moore from Summit Restaurant as he showed the Singles some impressive, low calorie party dishes that each contestant needed to prepare. The contestants are surprised with a cocktail party at the coolest club in town – Camp Biggest Loser. With each contestant getting dolled up and meeting some possible suitors.

An Elimination aftermath has the contestants explaining to their Trainers that unfortunately Bek was eliminated. Michelle surprises Margie with her secret weapon – a cardboard cut out of Michelle’s face attached to the fridge. The contestants are locked out of their Gym and are surprised with a video explaining that it’s time to Train the Trainers. Watching from The Bunker, the trainers realise that they are in for a world of pain as the contestants let loose on them. The contestants get their revenge on their Trainers and really let them have it. The Trainers then went head-to-head in a Sumo wrestling match that had everyone laughing. Kasey and Margie are the first to unleash their new found training confidence at the Train Australia event, much to their Trainer’s surprise.

After an epic week facing their fears on the Swiss Alps, the contestants returned back to Australia to a special homecoming surprise. Family and loved ones were invited to Camp Biggest Loser. Loved ones got the chance for contestants to show them how far they’ve come as they experience what it’s like to go through last chance training. The contestants then say goodbye to their family and friends as they prepare for the Weigh In and Elimination. Kasey and Bek unfortunately fall below the yellow line and it was up to the remaining three contestants to vote. After a hung vote, Margie decided that it was time for Bek to leave Camp Biggest Loser.

The latest Biggest Loser special showed us some special, unseen home videos from the six contestants in Switzerland. Margie was so excited to visit the Alps as this was her first time seeing snow. Alex took a dive into the icy plunge pool and showed us the tricks of the trade as she retreated to the heating room to get his core temperature back up to speed. Checking up on Lydia, she is doing well at home in Tasmania and even had a visit from Dr Norman Swan. The results of his test reveal that Lydia is now two years younger than her chronological age. Also Sammy gave Lydia the surprise of her life in her own personal chance to face her fears – by swimming with sharks.

The contestants take part in a little shock therapy as they take an invigorating Arctic plunge to represent the start of a refreshing new start. They even get some playful payback, as they get into a snowball fight with the Trainers. Haley is back and introduced the remaining six to their next Super Challenge. The contestants had to trudge their way through fresh snow for 1km, jump on a traditional Swiss sledge and navigate 500m down a Swiss snow track, cycle over 9km, reach Interlaken’s rail bridge and repel 20m down to the river below, then kayak 500m down the river and do a final sprint into the centre of Interlaken to face a table of traditional Swiss dishes. The person holding the highest calorie dish was to be eliminated. The contestants battled resulting in lots of thrills and spills as they raced to the finish line. Margie arrived first, choosing the raspberries plate, Bek then decided on the Swiss hot Chocolate, Kasey came by next choosing the Bratwurst sausage, Brenda arrived shortly and hastily decided on a cheese plate, Graham stuck to the Swiss Chocolate and Alex forcefully takes the Potato Rosti. The Swiss Chocolate was the hard hitter, sending Graham home and out of the competition. With the finish line in sight, it’s time for the contestants to head home.

The contestants are introduced to the second part of their journey as they hit the slopes of Switzerland to conquer their fears. The contestants are asked to take a step back in time to carry the weight and pain of the past. Graham tells Commando that he saved his life and vowed to always continue to train for life. Kasey is reluctant to take on the weight, as it reminds her of the unhappy times in her past. Shannan reminds Bek of the family hardships she faced being overweight and the person she always wanted to be. Brenda takes a moment to reflect on her new found confidence and was frustrated with all the excuses that she used to make. Margie was frustrated with the weight she ballooned to over the years and vowed her life activities will be very different from now on. Alex’s pain was both physical and emotional, as he faced a battle of the minds to overcome his past and neglect he put on his body for 30 years. An icy plunge takes the contestants breath away, as it symbolises the start of a new chapter of their lives.

The six remaining contestants are surprised with a trip to Switzerland to experience ‘Fear Week.’  The lengthy trip gives the contestant’s time to realise what they are there to do. The trainers ask the contestants to let go of the past and introduce the contestants to what is in store for them over the upcoming week. Kasey, Bek and Brenda are asked to put all their self doubt behind and take a leap of faith. Alex is asked to take the 180m freefall and 120m canyon swing and finds himself wanting to back out. With a surge of courage, Alex pushes away anyone in his way and dives right into it. Margie is scared stiff as her fear of heights holds her back. Using Michelle’s words and a moment of clarity thinking about her brother, Margie decides it’s the right thing to do and takes the leap.

With ‘Dreams Week’ coming to an end, the contestants lived their dreams and faced some of their demons. The trainers went hard with some last chance training before Elimination. In training, Graham took back control as he gave it his absolute all, much to Commando's surprise. Margie felt a little lost without Lydia, so trainer Michelle focused in and managed to harness Margie's inner strength. At Weigh-In, Kasey’s immunity kept her safe, while Graham and Lydia were left below the yellow line. The contestants faced a difficult vote, but Graham was four times lucky in the Elimination chair, which ultimately sent Lydia home once again. 

The latest Biggest Loser special checked in on Michelle’s progress on the outside, who talked through her new training regime. The Commando adopted a different approach for his training session, recruiting Alex to help push Graham to the limit. Extended footage from Camp showed Shannan working with Brenda, who has marked herself as one of the competition’s biggest threats. Dr Swan delivered the fantastic news that Michelle’s bio age was now down to 25 – only one year above her chronological age. Graham talked through his feelings for Lydia, before Michelle received her mini-makeover from Sammy and then hit a club and wowed the audience with a stunning vocal performance.

Kasey won immunity, leaving Lydia crushed. Alex and Graham trained, with Shannan taking Brenda and Bek through their food diaries. Margie and Michelle continued to butt heads, with the former storming off following a heated discussion. The contestants faced torrential conditions for their latest Challenge, an open water swim through Sydney harbour to the beach, where they each had to dig up a treasure chest, carry it up the hill back to Camp Biggest Loser and then find the key to open it. The first person to open theirs would win a 1kg weight advantage. Margie took the win and the precious advantage. Within the contestants’ chests were family photos and other personal items, leaving them in floods of tears.

Lydia got to enjoy her dream week ambition of getting back on her horse, while Graham and Alex were given their week’s food rations by Commando and put through a Cross Fit training session. Brenda and Bek toiled in training with Shannan, and Margie admitted falling back into bad habits to Michelle. The contestants then arrived for a cupcake Temptation, with Immunity on the line. Brenda, Lydia, Bek and Kasey played, with the Immunity star finally found at the close – but by who?

The fallout from the Elimination was immense, with Michelle staggered that Margie survived and Shannan incredulous. Tiffiny helped Kasey deal with the loss of her friend, while The Commando boxed with Graham in training. The trainers then announced Dreams Week, which would see the contestants realising their ultimate ambitions. Margie went surfing; Alex took to the track for a ride on a Harley; Bek went to work with the kids at the Starlight Room of Randwick Childrens Hospital; Kasey went horse riding; Brenda realised her fashion dreams and Graham was put through his fireman paces.

Lydia gave the 1kg weight penalty to Graham. Tiffiny and Kasey checked in on Michelle’s progress with a phone call, who appeared to be making strides with the help of training partner Hamish. Michelle Bridges set Lydia and Margie to work for Last Chance Training, while The Commando was busy being horrified at the state of Graham and Alex’s room. Finding roasted peanuts by Graham’s bed, The Commando immediately headed to confront his trainee. At the Weigh-In, Alex managed to hold onto Immunity by the skin of his teeth after losing 100g, while Michelle and Margie were left below the Yellow Line. The vote was tight, but Margie edged it 3-2, sending a tearful Michelle home.

Brenda joined Alex in taking Temptation, but didn’t do nearly enough to wrest Immunity away from him. Camp Biggest Loser welcomed inspirational athlete Kurt Fearnley to help push the contestants in training. For the Challenge, the contestants had to hold weight bars and one by one decide whose bar to add weight to. Lydia, Graham and Bek were left battling it out for the win, with Lydia doing enough to take the victory. Her prize: a 1kg weight advantage and the power to give another contestant a 1kg weight penalty.

Michelle headed home, while the other contestants arrived in the lounge for Hayley to introduce the next Temptation, a 24-hour battle to resist the kind of treats that had brought them to Camp Biggest Loser. The contestant consuming the most calories would win the most valuable prize of all: Immunity. Margie tried to entice Alex to play, who took the bait. After suffering breathing problems, however, Alex was transported to hospital by the paramedics, leaving his fellow contestants fearing for his wellbeing.

The returning contestants chose who they wanted to train with – Bek and Brenda selecting Shannan, while Lydia opted to stay with Michelle. The players trained, before heading to the pool for the next Contest – with the winner getting to select one contestant to go home until the next Weigh-In. For the Contest the contestants, attached to bungee cords, had to transport medicine balls from one end of the pool to the other. Lydia beat Michelle in the first round, Margie defeating Alex in the second. For the final round, Lydia and Margie had to suspend themselves above the pool and see who could hold on the longest. Margie won, while Lydia suffered from a crippling panic attack.

In a close race Bek took the final Weigh-In pass, leaving Shane, Ryan and Hamish to wonder what might have been. The contestants trained, with Michelle helped Margie through her food diary. The Weigh-In produced some incredible results, especially Brenda, who easily secured her place back in the competition. Bek, Lisa and Simon fell below the Yellow Line, with their peers having to vote for who they wanted to save. Bek got the nod, giving her passage back into the game.

Shannan arrived to train his troops, delighted by the news that Lydia had secured herself a Weigh-In Pass. The others were led in a pool training session by The Commando, who raced the contestants in a special circuit, unsurprisingly coming out the winner. The final two Weigh-In Passes were up for grabs in a Biggest Loser Iron Man Challenge at Palm Beach. Brenda took the win with a determined effort, leaving Bek and Shane battling it out for the final Pass.

Michelle Bridges led the contestants in training, trying to beat Simon and Lisa’s time on the spin bikes, with Michelle posting the best time of all. Hamish returned to his old ways in training, citing the flu, until Shannan pushed him to get involved. Hayley presented the next opportunity to win a Weigh-In Pass, a test of knowledge and endurance, with the contestants having to increase their treadmill speed for every question on nutrition they answered incorrectly. With a fantastic performance, Lydia took the win and the third coveted Pass.

A relieved Tiffiny welcomed back Michelle, while Lydia reunited with Lisa and the others members of Shannan’s Secret Training Squad. The Bunker was finally revealed to the contestants, who saw their former teammates return on the monitors. In the Weigh-In Room, Hayley explained that over the course of the week there would be five Weigh-In passes up for grabs. Those still in the game, meanwhile, would have Immunity. The past contestants weighed in, with Selena dropping the bombshell that she didn’t want to fight for her place in the game. Both sets of contestants trained their hearts out, before being led into the Contest arena for Shannan’s squad to fight for two Weigh-In passes. For the first round, the contenders had to hold a 1.2kg weight in front of them, without lowering or bending their arms, changing their grip or breaking the tape. Lydia, Bek, Lisa and Simon made it through to the second round on the spin bikes, with Simon and Lisa taking first and second and the passes.

Shannan led his Secret Training Squad in Last Chance Training, while back in her dojang Tiffiny and her father led those still in the game in a gruelling session of their own. Except, of course, for Lydia and Kasey, who tried their best to train in lockdown. The Weigh-In was explosive; Margie again won Biggest Loser, but Michelle and Lydia both gained weight, putting them below the Yellow Line. In the Elimination Room the vote went against Lydia, sending her out of Camp Biggest Loser’s gates, only to find Shannan waiting for her, who took her to join his recruits for a shot at getting back into the competition.

Extended footage from Makeover showed Margie coming to terms with her new look and Graham finally confronting his new self in the mirror. Norman Swan checked in on Shane to see his progress, reminding him of his punishing old diet while being encouraged at the strides he’s taken since leaving Camp. Shane’s bio age was revealed to have dropped to 49, a result he was disappointed with, though Dr Swan reminded him that it would have come down further had he not started smoking again. Ryan got an education in healthy eating, before Shane received his mini-makeover courtesy of Sammy.

The last of the contestants took to the Makeover Catwalk, with Michelle thrilling the crowds by showing off her spectacular new look and equally magnificent voice. The contestants then enjoyed a night out, with Graham’s newfound confidence a hit with the ladies. The next day in training, a homesick Michelle admitted she’d suffered from binge eating following Makeover, with Tiff helping her to talk through it. Shannan introduced his Secret Training Squad to The Bunker, before taking them to the gym to train with champion boxer Billy ‘The Kid’ Dib. Back at Camp, the contestants prepared for the Raft Challenge. Having to pick their partners at random, the pairs had to build their rafts and race down river. Alex and Michelle won and with it a 1kg advantage, while as last place finishers Lydia and Kasey were placed in room lockdown until Weigh-In, with a single spin bike for company.

The Makeovers continued, with the contestants finally coming face to face with a full-length mirror for the first time in 10 weeks. The reveals were stunning, leading to emotional scenes between the trainers and their charges. Finally, it was time for them to take to the catwalk, and as they strutted their stuff before hundreds of screaming fans the enormity of their accomplishments so far was clear for all to see.

The contestants and Michelle came to terms with the departure of Lisa, while Shannan welcomed his ‘Secret Training Squad’ of past contestants, all of whom would have a chance to fight for a way back into the competition. Those still in the game got down and dirty in training, before departing for what many had been waiting for: makeover. Shannan revealed that James and Luke would also be taking part. Shannan’s troops, meanwhile, got busy on their homework: 150 laps of the stairs as a team. With makeovers done, the contestants then prepared to greet the public for their turn on the catwalk.

Lisa had more breakthroughs with Michelle, while Graham fought against Alex in Last Chance Training and won, proving to The Commando that he was capable of stepping up his intensity. Shannan checked up on Luke to check on his progress, and liked what he saw. Margie took Biggest Loser of the week, thanks to both her fantastic loss and 1kg weight advantage. Lisa and Alex were left below the Yellow Line, and much to the distress of her former teammates Lisa was voted out of Camp Biggest Loser.

Catching up with his progress since leaving Camp, Simon proved to be continuing his journey with conviction on the outside, much to his kids’ delight. Extra footage from trapeze training revealed the extent of Margie’s fears and also her bravery. The development of Simon and Lisa’s relationship was shown, as well as an extended look at their emotional goodbye. Norman Swan revealed that Simon had brought his bio age down to 45 – only four years above his chronological age. Michelle and Kasey discussed team strategy looking ahead, before Simon got suited and booted during his makeover by Sammy.

Michelle gave the other Immunity to Kasey, but the good vibes were short-lived after the chocolate cake came back to haunt her during training. The Commando put his team through a gruelling post-Temptation training, while Lisa worked solo with Michelle in the hopes of pulling a big number at Weigh-In. Shannan made his way to Adelaide to check in on James’ progress, who was doing superbly. Hayley then introduced the Tyre Challenge: players had to lift and place 10 tyres on top of a pole, before removing them and doing the same to the next pole, with five poles in total, before repeating he process on the way back to the start. The price for the winner was a 1kg weight advantage, but the person in last place would receive a 1kg disadvantage. Margie took the win, but Lisa struggling throughout, leaving her saddled with the penalty.

At The Walk, Lisa won exclusive access to a trainer for the week, picking herself to train with Michelle. The other contestants joined forces to train under The Commando and Tiffiny. Michelle took Lisa through the fundamentals of healthy snacking, before heading into a training session. The contestants then headed into a Patisserie Temptation, the sweet dreams coming courtesy of Adriano Zumbo. Alex, Margie, Michelle, Lydia played, with Michelle winning two Immunities at a cost of 850 calories.

In need of a little fun, the contestants were broken off into two groups, with Michelle taking hers for flying lessons at the Sydney Trapeze School. Margie managed to overcome her fear of heights in impressive style. Tiff, meanwhile, took hers climbing. The Commando had a training session Graham, continuing in his efforts to try and fire him up. For the Contest, the contestants had to avoid the arms of a spinning sweeper, which grew in speed. As the Biggest Loser at the last weigh-in, Michelle got to choose the champions, picking herself, Graham, Kasey and Lisa. Kasey won the first round against Michelle, with Lisa besting Graham in the second. Lisa’s brilliant performance continued in the final, winning her the power of The Walk.

Lydia was crowned the Ultimate Athlete, winning the trophy, a 1kg weight advantage a call home, which she used to call her dad. The Commando pushed the Blacks to the utmost in Last Chance Training, with Simon struggling but giving his all. Graham sat out the session, much to The Commando’s annoyance. Lisa stepped it up a notch in training, much to Michelle’s delight. The weigh-in produced tense scenes, as Graham’s loss once again left The Commando questioning his commitment. Simon and Lisa fell below the Yellow Line, with the vote going against Simon and resulting in an emotional farewell.

Selena proved to be doing fantastically on the outside, both with her diet and exercise routine. Extended footage from the house saw Lydia and Kasey confronting their old selves during the Contest, and the former admitting that she’d fully begun playing the game. Dr Swan visited Selena, reminding her of her previous diet and informing her she’d knocked six years off her bio age. Sammy then gave Selena the makeover treatment.

Margie won Immunity at Temptation, but not without having some cross words with Simon, who took offence to her constant badgering of Graham. The contestants trained, with The Commando letting rip at Alex for refusing to be attached to Graham. The contestants entered the Weigh-In Room for the Ultimate Athlete Challenge. A marathon taking place over several pieces of gym equipment, the prize for the overall winner was a trophy, a 1kg weight advantage and a phone call home. The contestants gave their all, pushing themselves to breaking point. Simon collapsed and had to be administered oxygen. Lydia and Margie contested the final round, a sprint to the finish.

Lisa went on The Walk and chose Mystery, winning the power to select one contestant to be strapped to another until weigh-in. The Commando took Graham home for a training session, which showed his community how much he’s changed. Lisa selected Alex to be attached to Graham, with the forming protesting and eventually refusing. Hayley informed him that as a penalty he would receive a 2kg disadvantage at the next weigh-in. The contestants played a sushi Temptation, with Margie and Graham left battling it out for the precious prize of Immunity.

The contestants were given a shake-up, as Hayley revealed that the teams were being broken down and contestants were now playing as singles. Lydia was revealed as the Biggest Loser in the competition so far, having lost a massive 35.3kg. The contestants all received their black uniforms, before hitting training. The contestants then arrived at the fields for their first Contest as singles, with the first leg a 400 metre race, won by Margie. Hayley revealed that for the second part of the Contest, players had to strap on weight vests carrying the weight they’d dropped so far, with the racers getting closest to their original times going through to the next stage. Michelle came closest, followed by Lisa, Simon and Graham. For the third and final round, Lisa took the overall victory by one second and won the power of The Walk.

Selena was chosen to weigh-in immediately, with the result being a mystery until the official weigh-in. Simon admitted to finding the gameplay element wearying, after which The Commando showed him his entry video to remind him of how far he’d come. The Old Dogs beats the Young Pups in a tug of war, before the contestants entered the Weigh-In Room. Simon took Biggest Loser of the week, with the rest of his team doing enough to keep the Old Dogs above the Yellow Line. The Young Pups faced Elimination and, forced to vote a member of their own team off, Selena received the most votes and was sent home.

The Biggest Loser Singles caught up with Hamish to check on his progress, as well as featuring extended footage from the Charm School Temptation. Dr Swan revealed Hamish had brought his bio age down to 29, while Lydia enjoyed her newfound power by watching the monitors down in The Bunker. Sammy then worked her makeover magic on Hamish, giving him a hip new look to complement his newfound confidence.

Michelle was selected as the most charming Temptation contestant, securing herself Immunity for the week. As a further treat, Hamish was waiting at the restaurant to surprise her for the Young Pups' night out. The Old Dogs training session took them to the ocean for a swim, while Margie’s suggestion to throw the weigh-in to enable them to eliminate Selena left the other members of the Young Pups in turmoil. The next Challenge took place at the Lane Cove Aquatic Centre, with contestants having to walk across the pool on balance beams to retrieve various items corresponding to their generations. The Old Dogs won and with it the power to select a contestant from the opposing team to weigh-in immediately.

Simon went on The Walk, selecting The Secret box. ‘Choose one contestant that will learn The Secret’ was the instruction, with Lydia receiving the power after winning a game of paper, rock, scissors against Simon. Hayley then revealed The Bunker to Lydia and told her she now had the advantage to use the cameras whenever she chose. The trainers then introduced the next challenge in the Battle of the Ages, a cook-off, with each team having to create a three-course meal under 1000 calories in one hour. The trainers revealed the Old Dogs as the winners. Michelle received a touching letter from Hamish, before the Dating Temptation Challenge was announced, with members of the public voting for who they thought was the most charming after a round of speed dating. The Young Pups took the win 13 votes to 11, winning a night out for their efforts.

The White Team suffered from the strain of Selena’s Elimination vote for Hamish. With no team members left, Shannan walked out of Camp Biggest Loser. Hayley introduced the theme of the weeks: Old Dogs vs Young Pups. As the youngest member of the Over 30s females, Margie balanced out the sides as a member of the Young Pups. The trainers put their teams through their paces, with Margie sending Selena storming out of training. The teams entered The Contest arena, for a battle over three rounds: brains, endurance and skill. Lisa won the skill round and Lydia the strength, winning them the power of The Walk.

The Quarry Challenge continued, with the Black Team taking the win and securing themselves video chats with home and removing Hamish of his trainer. Hayley then revealed that as a special reward, all the teams would be allowed to call home. Hamish gave his all in a solo training session, while out bush Tiff encouraged Michelle to open up about her feelings for Hamish. At the weigh-in, Michelle took Biggest Loser, leaving Blue and Black below the Yellow Line. Hamish faced Graham in the Elimination Room, and in a close vote the former was forced to say his goodbyes.

It’s was time to catch up with Bek in the latest Biggest Loser Friday special, who proved to be making astonishing progress on the outside. Luke talked at greater length about the drink problems that had caused his exit, the contestants shared their thoughts on Hamish and Michelle’s romance, and Hayley introduced unseen footage from the week’s Contest. Dr Swan broke the news that Bek’s bio age had dropped to only one year above her actual age, before Sammy treated her to a stunning mini-makeover.

Simon continued to play Temptation, while the Whites struggled with life in the Bush. Shannan woke up Hamish and put him straight into an early training session, before asking him to reveal his true feelings for Michelle. The White Team trained, with Selena admitting to Tiffiny she felt she didn’t deserve to still be in the competition. For the Offsite Challenge, the contestants were taken to a quarry; the teams had to break down piles of rock, and then add them to another team’s basket. When the basket was full, the team was eliminated. The winning team received the power to rid one team of their trainer for the week, and make video phone calls home. Graham, Hamish and Lisa competed. Hamish was the first contestant eliminated. Graham powered through and took the win, with Hayley then revealing that all the contestants would be allowed to call home.

Margie won The Contest and with it the power of The Walk, selecting Mystery. Her power: to select one person whose weigh-in weight would not be included in their team’s total weight percentage for the week. To prevent Hamish again winning Immunity through Temptation, Margie suggested that Simon beat him to it, after which she’d give him the prize won at The Walk. After discovering Hamish hadn’t been training, Shannan pushed him to the max, the White Team bonded over a training session with Tiff out in the Bush and The Commando punished Graham during the Black Team workout. Simon played Temptation, leaving the others wondering how many calories he would have to consume before he uncovered the Immunity pass.

Bek was eliminated from the competition, leaving the White Team relieved that they didn’t have to face the fallout of nominating her. The trainers staged a surprise midnight raid, putting all the contestants through an intense training session. They then had to race back to Camp, with Hayley revealing that the winners would receive massive power over the game. The Reds again took the win, and were told they had to pick another team to leave Camp immediately, to head out to the Bush until the next Weigh-In. They picked the Whites. The other teams arrived at the beach for the next Contest, in which a Champion from each had to balance on an increasingly narrow beam in the water. The winner of The Contest got the power of The Walk. Hamish was the first to fall, leaving Simon and Margie battling for the win.

Following the Palm Beach Challenge, Shannan observed Luke acting inebriated back at Camp and discovered he had smuggled alcohol in with him. Luke was subsequently ejected from the competition. Tensions mounted in the White Team, with Selena accusing the others of bullying her. Some great numbers were lost at Weigh-In, but with their 1kg per member penalty the Whites went below the Yellow Line, while the Blacks once again faced a member being Eliminated. Graham put himself up, while in a shock twist of events the Whites nominated Bek, leaving the panel with another tough decision to make.

For the second Friday special, The Biggest Loser Singles caught up with Ryan’s progress on the outside, seeing his training regime and new diet. Dr Swan dropped in, revealing Ryan had knocked six years off his bio age. The Commando put the Blacks through a unique training session, giving them three minutes to make their beds and then cycle one kilometres. Hamish showed some fire by getting into a sparring ring with Shannan, before the results of Ryan’s mini-makeover were revealed.

Hamish was the only contestant to participate in Temptation, eating 988 calories-worth of chocolates, securing himself Immunity and a leave pass. Michelle watched the Red Team put in a fantastic training effort, treating them to a meal out as a reward. For the Offsite Challenge, the teams hit the beach and had to dig kayaks and oars out from beneath the sand. Once freed they had to drag the kayak to the water, row out and collect the weighted markers from a series of buoys and return them. The Reds once again proved themselves the competition’s dominant force, taking the win. The Blues struggled, with Luke and Hamish butting heads, but it was the Whites who truly broke down, finishing last and receiving a 1kg weight penalty per member.

The contestants prepared for a surprise weigh-in, with the second Immunity and another 24-hour leave pass on the line. Lydia lost the biggest number, winning her the massive reward. The other housemates trained with the Manly Sea Eagles, with Shannan once again meeting resistance from Hamish. The final Immunity and leave pass were on offer to the winner of a chocolate-themed Temptation. The rules were simple: whoever ate the most was declared the victor, with the players blindfolded so they weren’t influenced by their peers. For another week, Hamish played and looked to be cruising to victory.

Hayley explained that Immunity Week was about to commence, giving contestants multiple chances to keep themselves safe. Graham returned from the Elimination Room, much to the relief of his team. Luke gave his all in training, feeling guilty for Ryan's exit, while Hamish gave his best performance yet. Lydia broke down in Red Team training, although Michelle helped her resolve to lose a bigger number at the next weigh-in. Tired of his team's "hot air", The Commando made absolutely sure Graham was getting his "no excuses" message. For the first of the Immunity Challenges, the contestants had to move bricks by hand from one pallet to another. The first to transfer all of theirs won both safe passage and a 24-hour pass home. In a tight race between Margie and Luke, it was the Blue Team member that took the win. Hayley then surprised the other competitors with a fresh game twist.

The girls emerged as victors at the battle of Hell Hill, winning them a 2kg weigh-in advantage. Ryan again broke down in training, as Shannan and The Commando struggled to break down his barriers. Luke, meanwhile, entered the boxing ring with Shannan and in an impressive performance gave as good as he got. At weigh-in the results were mixed, with Blue and Black Teams falling beneath the Yellow Line. Graham and Ryan volunteered to go up for Elimination, with the vote going against Loser’s biggest even competitor and sending him home.

In extra footage from the latest week at Camp Biggest Loser, Shannan exploded at Ryan for not committing himself 100% to changing his life. New scenes delved deeper into the house’s burgeoning relationships. Following an extended catch-up, Brenda proved herself to be going great guns on the outside, following her diet and new training regime. Dr Swan stopped by to update her bio age, before she received a special makeover as a reward for her hard work.

Hamish won Temptation after beating Ryan and Michelle deciding not to play, securing himself Immunity and a night away with another contestant – but at the cost of 1873 calories. Hamish chose Michelle to join him. Shannan tried to get Ryan to push himself in training and prove he had much more to give than he’d shown in the Contest. Hayley welcomed special guest Sammy from series four to dispense some advice about learning to appreciate yourself. The Offsite Challenge – Hell Hill – pit the girls against the boys, running up and down a massive sand dune. The first team to complete 50 laps won. The teams were closely matched, but a breakdown from Ryan in the closing stages threatened to tip the scales.

Lydia went on The Walk, choosing the box marked ‘Food’ before going back to Camp to reveal that the boys would only be able to eat orange foods for the next week. The girls trained, with Michelle getting them to write some of the hateful things they’d be called in their lives as motivation to fight even harder. The contestants got dressed up for ‘Silver Spoon Temptation,’ with food prepared by celebrated chef Michael Moore. With Hamish determined to win Immunity, he powered through, with only Ryan standing in his way in the final round.

Brenda’s Elimination caused friction in the house, with Margie accusing Bek of breaking her pledge not to vote out any of the girls. The contestants headed to the weigh in room, to learn that they were being split into two teams for an upcoming Contest: girls vs boys. The teams trained, with Bek’s progress frustrating her new teammates. The teams then entered the Contest arena, with Hayley explaining that the winner would receive the power of The Walk. Margie bested Ryan in the strength round, before Michelle beat Luke in an epic test of speed, sending Lydia out to choose the boys’ fate.

After an epic finish to the Valley Stampede Challenge, the Blacks beat the Blues, leaving the latter saddled with a 2kg penalty at weigh-in. Luckily for them they had Team Immunity. Watching from The Bunker, Shannan and Tiffiny discovered that their teams hadn’t been according to the schedule, with Tiff letting her anger be known. The contestants then entered the weigh-in, with only one spot available above the Yellow Line. Against all odds, the White Team secured it, with Selena justifying her second chance as the week’s biggest loser. The distraught Reds and Blacks then nominated Brenda and Alex for Elimination, with Brenda receiving the most votes and leaving the competition.

The Blues were revealed to be the only players of Temptation, winning then team Immunity. Despite their prize Shannan let his disappointment be known, putting them through a gruelling training session in which Luke excelled. Michelle quizzed the Reds about their exercise – or lack of – during Temptation and showed them some simple routines they could have used to keep active. The teams then left for the Valley Stampede Challenge, working in pairs across a punishing obstacle course. During the Challenge Shannan continued to struggle to motivate Hamish, while the Reds against marked themselves as the team to beat by taking the win. The Whites took second, leaving the Blacks and Blues battling to avoid a last place finish.

The contestants received letters from home, which spurred them on in training. Shannan inspired Hamish to push through some barriers on the spin bike, who impressed his trainer by managing to keep pace with Luke. The teams arrived back at their rooms to be greeted with sweet treats aplenty, letters explaining that a 12-Hour Temptation had begun, with team Immunity up for grabs. In a show first, the trainers watched Temptation live from The Bunker. The Blacks and Reds held strong and refused to play. The Blues, fearing they would fall beneath the Yellow Line, opted to participate, while the Whites conducted a secret ballot to gauge opinion on whether to take Temptation or not.

The teams continued to confer in the Elimination Room before casting their votes, leading to Shane’s exit from the competition. Hayley revealed to the trainers that Camp Biggest Loser was bugged with cameras, revealing shocking truths about some contestants’ continual bad eating habits. The trainers were then shown The Bunker, from which they could monitor what was really going on in the house. The teams trained, before being taken out of Camp Biggest Loser for a public speaking task, which saw them battling their nerves to share their heartbreaking life stories.

The Sheep Herding Challenge concluded, with the Red Team putting in a supreme effort to beat the Blacks and win a 2km advantage at weigh-in. Selena re-entered Camp Biggest Loser, before the contestants got down to Last Chance Training. Shannan tried to make James see sense about the money and stay in the competition, while Michelle tried to get to the root of a resistant Brenda’s struggles. In the weigh-in room, James announced his decision to take the $30,000 and leave the game. The weigh-ins produced modest losses across the board, with the Reds topping the leaderboard and Margie winning Biggest Loser of the week. The Whites and Black were below the Yellow Line, with Shane and Michelle nominated to face Elimination.

James continued to mull over whether to take the money won at Temptation, much to the dismay of his team. Shannan tried to get the Blues to see James’ side of the story, then got them to focus their feelings into a training session. The Commando gave his Black Team some pointers about healthy eating, before the contestants departed for their next Offsite Challenge: sheep herding. Round by round, the teams faced off, needing to each pen seven sheep to progress. The Reds beat the Whites, while the Blacks saw off the Blues, leaving the stage set for a dramatic final.

Shane returned from the Walk, revealing to the contestants that he had won the power to bring an eliminated contestant back and was giving Selena a second chance – news not greeted warmly by all. The teams were put through a gruelling training session, with Brenda opening up to Michelle about her past struggles and Hamish pushing past the pain with Shannan. Temptation revealed a room full of calorie-heavy treats, with Hayley explaining that a prize of $30,000 in gold bullion was up for grabs for the person consuming the most. Only two played: Lisa, who ate a modest 90 calories, and James, who piled away a massive 960. The twist: if he took the bullion he would have to leave the house forever, leaving him with a huge decision to make.

The fallout from Monday’s elimination was fierce, with the trainers demanding to know why Margie opted to vote Selena out of the competition, sending the Red Team member storming out. The teams then proceeded to training, giving their absolute all. Afterwards Hayley revealed the first Contest, which saw Michelle, Luke, Lydia and Shane battling it out for their teams over three rounds of mental and physical strength. The final came down to Luke and Shane, with the latter taking the win and going on The Walk. Hayley explained he could now choose from one of three boxes: power over food, training or a mystery option. Shane opted for the mystery box, and though not revealing its contents looked a little unsure about how his fellow contestants would react to the game-changing development.

After a tight battle the Black Team bested the Reds in the Ferry Pull Challenge, winning them a 2kg weigh-in advantage. Selena collapsed, exhausted from the effort. The contestants gathered themselves and entered the weigh-in room for their first competitive visit to the scales. The loses were hugely impressive, though with the lowest percentages Selena and Hamish were left facing elimination. In the elimination room Hayley revealed a twist – the teams above the Yellow Line could choose not to vote anyone out. Yet Margie, questioning Selena’s commitment, voted for her, forcing the other contestants to vote themselves and setting in motion a chain of events that resulted in Selena’s elimination.

Despite Hayley piling on the pressure by adding further chances for immunity to the wheel, none of the contestants decided to play Temptation. Though happy at the news, Shannan then hit the roof after discovering that his team hadn’t burned off the 600 calories each he’d set them for homework. The Reds suffered a similar fate when the in-house cameras showed Michelle that Lydia was the only one up early training. The first Off-Site Challenge was revealed, each team jumping into a row boat and towing a 110 tonne ferry. As the episode came to a close, the Reds and Blacks were neck-and-neck in the battle for first place.

As training continued, Tiffiny left the dojang to clear the air with Bek. Ryan continued to suffer but was lifted by his teammates. In the yard, The Commando got to work on his Black Team, with Alex initially struggling but ultimately drawing on reserves of strength he never knew he had. The contestants shared their reasons for applying to be in the show, before being told their bio ages by Dr Swan and shown what their collective body fat looked like. A series of hidden cameras later showed that the Blues hadn’t been sticking to their morning training commitments, then Hayley revealed The Wheel of Temptation. With the chance to spin for immunity on the line, the teams were doing their best to resist; only James appeared as if he might just be willing to gamble.

The weigh-ins continued, with the Blue Team’s Ryan setting a record as The Biggest Loser’s heaviest ever participant. Out of the weigh-in room, the contestants savoured their new surroundings before getting their first taste of training. Shannan urged his Blues to leave no man behind as Ryan struggled; Michelle’s recruits ran up and down the stairs of Camp Biggest Loser, fighting the desire to give up; while Tiffiny pushed her ninjas to their limits, resulting in Bek throwing a bar off an exercise bike in protest and getting ejected from the dojang.

Ready for another season of action, Shannan, Michelle, The Commando and Tiffiny visited locations across Australia to inform their team members they had secured themselves coveted places on The Biggest Loser Singles. The trainers got to see their trainees in their everyday environment, including what their typical diet consisted of. Each possessing their own heartbreaking story, the contestants were unified in their desire to change their lives, and find someone to share them with. Once back at Camp Biggest Loser and into their colours, the excited teams met in a rain-drenched yard and prepared to begin their journey. Hayley then revealed it was time for their first weigh-in, with friends and family joining them for much-needed support.