Diego is 13 years old and is the classic good boy with excellent grades at school, a long-time best friend and an unrequited love for the most beautiful girl in school, Erika, to whom he has never had the courage to declare himself. Everything changes when a new classmate arrives in class, Leo, who embodies everything Diego would like to be: handsome, self-confident, arrogant, with a bully's manner. They become friends, but almost without realizing it Diego finds himself in a baby gang: getting out won't be easy...