One two, one two... mic test. Twelve-year-old Ben loves not only music, but also food and cooking. And it shows in him too. But when one day he bumps into his classmate Klárka, he decides to lose the extra pounds. On the way to his dream figure and Klárca's heart, he is mainly helped by his friends from the band and his caring mother. The animated film directed by Kristina Dufková, based on Mikaël Ollivier's bestseller, follows the first sorrows, loves and pitfalls of adolescence with humor accompanied by upbeat songs.