Tomáš is on the verge of life and death. His extreme obesity has trapped him in an apartment from which he hardly leaves. He spends his days on the couch surrounded by food. Tomáš's obesity is destroying not only his life, but his entire family's. His health condition is serious, and he is the one who is starting to realize that he can no longer turn a blind eye to it. Tomáš wants to change himself, he is determined to undergo a year of hard work and strong will, because he knows that this is his last chance to save his life.

Dominika has suffered from obesity since childhood. She heard mockery about her weight every day, which caused her to have literally zero self-confidence. Dominika has reached the point where she hates herself. Even though she is ashamed of her body, she has never found the strength to fight obesity on her own. She considers her life wasted. She is at the bottom and the only comfort she has found is food. But now she has finally decided to change - she will not give up and give her life a new meaning. During the next 365 days, she will not only have to fight hard with her kilos, but also the most difficult thing - finding her lost self-confidence.

Karel Horváth is a former football player. However, due to a serious car accident, he had to give up his hobby overnight. So he traded his love for sports for sweets, which he developed an addiction to. His weight skyrocketed and currently obesity is limiting him so much that he is neglecting what is most important to him - his family. Karel has decided not to let it go. He is ready to get back in shape in just one year and fight for a better life.

Libor is a Czech famous YouTuber who has built his career on presenting an unhealthy lifestyle. However, fatty foods and alcohol are now starting to take their toll. Even at a young age, Libor began to experience serious health problems associated with obesity, so he decided to become a new person. Libor has a difficult year ahead of him, full of hard work, during which he will not only fight for a better body, but also change his whole approach to life.

Gábina is a young girl who, in her thirties, hides at home and eats. Instead of enjoying life, she destroys her health. Gábina suffered a lot from her parents' divorce, which affected both her weight and her zero self-confidence. She has now found herself in a situation that even her fitness trainer mother cannot help her with. But now Martin comes to give her a second chance at life. Gábina faces a year of hard work, during which she must learn to value herself. Will she be able to do it and finally win the battle with her weight?

Jarda is 19 years old and is facing a terrifying diagnosis. He is in danger of not even seeing his thirtieth birthday due to obesity. Despite all his parents' efforts, Jarda has never managed to lose weight. Fast food and lack of exercise have always won over Jarda's own will. Now, Martin gives him a chance to change. Will Jarda finally win the battle with himself?

Lukáš suffers from morbid obesity. Laziness, lack of exercise and the constant intake of huge amounts of unhealthy food are starting to take their toll on Lukáš. Now he is on the verge of life and death. He knows that if he doesn't change his life immediately, he will die. His only chance is Martin! Lukáš will have to overcome himself and reach the very bottom.

Klára is a loving mother to little Deniska, but her obesity prevents her from leading an active life and she can no longer support her daughter. She wants to change her life and become a 100% mom. It will be a tough fight and a year full of obstacles. Will Klára and her family be able to handle it?

Bára and Ivan have known each other since childhood and their deep friendship soon grew into love. But both are troubled by severe obesity, which limits their relationship, destroys their health and their shared dream of starting a family. Thanks to Martin, they get a chance to change that. Bára and Ivan will fight for a whole year to save their health and their shared future.

Monika works as a nurse and has always cared more about others than herself. Bad eating habits and lack of exercise have brought her to a stage of extreme obesity, which prevents her from achieving her big dream of having a family. Martin can help her change that, but it won't be easy for Monika. She faces a year full of obstacles and hard work.

Petr is a loving husband and father. But because of his obesity, he has neglected his family for many years. He has decided to make a change. Coach Martin gives him the chance, but it won't be easy. Petr faces a year full of hard work and difficult obstacles. Will Petr manage his transformation?

Karolína is a young mother and suffers from a high degree of obesity, which is destroying her marriage and the care of their little twins. She leads an unhealthy lifestyle and drowns her sorrows in alcohol. Martin will help her change this. It will be a year of hard work and hard struggle not only for a physical transformation, but also for her new self.