The IIIB class returns with teacher Jan Sienkiewicz. As Dante, Nel and friends deal with love and school drama, they meet Korek, a math whiz. Their attempts to help him with dating reveal their own inexperience.

Dante struggles to reconcile his dreams with reality, while his relationship with Nel is tested. Then the mysterious Adam appears. In the background: the return of Korek, new feelings for Cegła, and the question of whether loyalty, friendship, and love can survive in the adult world.