Jaana is worried about an intimate photo she sent when she was dating. Antti rushes to help, which results in the photo spreading around students' messages. Who will extort who?
Is Keijo a misunderstood, hidden talent, or a troublemaker, who needs to learn to take responsibility over himself? Keijo ponders on exchanging to another class and at the same time subject choices cause problems to others.
Kaapo has coded the ToveriTutka application to make it easier to find new friends. However, not everyone is satisfied with the application, causing interesting situations.
Anttia is bothered by a folder that doesn't belong to him. Trying to get rid of it, he finds himself in danger. Group pressure pushes Jaana into a fatal choice.
Antti's little sister Aino needs a babysitter for the evening. Kalle wants to tell her friends something important. Antti has to make a choice between friendship, family and his crush.
It is the last day of school and the class' last assignment for the spring is to write a letter to their future selves. When the students write their own letters, but Antti is struggling to figure out what to write to his future self and he is worried about his relationship with Jaana.