It is the beginning of the school year. At 13 years old, Ben discovers the effects of puberty on his classmates who have changed a lot, especially Claire. Ben would like her to notice him, but he's hung up by his weight. Despite his passion for cooking, Ben decides to go on a diet. To face the bullying from Max and his gang, Ben can count on the support of his crazy family and friends. Together, they start a band for the Christmas show, at the end of a year that will have made them all grow up, gain confidence in themselves, in life and in love.
