Hanna is an ordinary teenager who had her friendship circle broken and now can count on only her boyfriend and their best friend, Matteo. However, everything is about to change when she meets some girls.

Hanna, Jonas and Matteo are going on a trip to Heidesee.

Hanna joins the organization team for the Heldenparty.

The girl-crew start planing for the Heldenparty and get invited to join Samuel in his new music video.

Hanna finally decides to tell her dad about Jonas. Meanwhile the girls are helping Kiki to get contraceptive for her upcoming night with Alexander.

Jonas and Hanna get into a fight and Hanna starts suspecting, that Jonas might be cheating on her. But then at Finns party things take a turn.

Hanna has to deal with the events of last weeks party, while Kiki tries to figure out why Alex hasn't talked to her since their one-nightstand.

Hanna wants to make things right between her and Jonas, Kiki reveals an old secret of Hanna and on top of that she receives a mysterious threat letter.

Jonas and Hanna have a final talk and Kiki and Mia visit the doctor, before everyone meets up for the big Heldenparty, which holds many surprises.