Thomas has few memories of his mother. He only remembers that for his fifth birthday, she made him the best poutine in the world. The next day, she was gone. She never came back. To celebrate his fourteenth birthday, Thomas decides to submit an idea to the Guinness Book of Records. With the help of his best friend Samuel and his soccer team, he will cook the world's largest poutine. If his record spreads around the world, his mother will find out and she will come back. He then sets out to find sponsors. The cheesemaker agrees to help him, on the condition that he take her daughter Élie on board. He then tries to convince the mayor that the arena is the ideal place to prepare the 600 kilos of poutine and serve it to customers. Mrs. Tartatcheff is not thrilled with the idea of bringing junk food into the arena. Thomas and his friends hatch the craziest plans to overcome these obstacles, but revelations call into question the "Prodigious Putin" project.
