After her boyfriend Jakov and her friend Lovro declined to attend a party, Eva goes alone. At the party, she confronts her former friend Sara. After a failed attempt to reconcile her friendship with Sara, Eva meets Nora, Tina and Nika.

Eva and Jakov spend the weekend at a vacation house, but Eva is unhappy that Jakov invited Lovro to join them.

Eva gets close with Nora, Tina and Nika as she invites them to a party at her house. A new girl, Vanessa, joins the squad.

The girls go to Nikola's birthday party in order to attempt to get close to the popular boys at the school. Vanessa tells Eva to break up with Jakov and hook up with Nikola, given that Nikola seem to be interested in her.

As Tina wants to sleep with Roko, the girls visit a gynecologist to get information on safe sex. Meanwhile, Eva arranges a dinner to introduce Jakov to her mom.

Suspecting that Jakov is seeing Sara again, Eva decides to talk to Lovro. At a party, Nikola wants to make Eva feel better.

Eva and Jakov reconcile. At school, Tina confronts Roko about him ignoring her, and Nora stands in Tina's defense. Ines finds out that Nikola cheated on her.

Jakov breaks up with Eva, and she unsuccessfully keeps trying to reconcile with him. Eva is bullied and slut-shamed by other students, which leads to her quarrels with her mom and Tina. She, however, reconciles with Sara. Meanwhile, Roko keeps hitting on Nora, who is uninterested.

Jakov and Eva are on friendly terms, as they're trying to help Lovro whose parents are divorcing. Tina is still alienated from Eva and the rest of the group. Ines, having broken up with Nikola, invites Eva to a Christmas party, as she wants to apologize for her actions. At the party, Eva confronts Lovro who tells her he told Ines about her and Nikola's kiss. Eva and the group help Tina after finding her unconscious in front of Ines' place.

The girls visit the gynecologist again after Tina has a pregnancy scare, and the gynecologist warns her about her unhealthy diet. Roko continues to hit on the uninterested Nora. Eva interrogates Lovro about why he betrayed her trust. She meets up with Jakov at her place to break up with him for good, but only after losing her virginity to him. At a Christmas market, Roko awkwardly apologizes to Tina, while Nora discovers a gay dating app on Lovro's phone.