Having spent intimate moments with Ragnar, Kristin stalls an inevitable moment of truth. A secret must be told, but the status quo is too comfortable. When Kristin discovers that Lilja and Matti are involved, she knows that she has to put her own feelings aside, but she's saved by the bell - an explosion at the school calls for her full attention. The explosion turns out to be the culmination of Hannas troubles and she has to come clean to Ragnar about the situation at home to save Matti, who Siggi blames for the explosion. Lilja and Matti overhear an argument between Kristin and Ragnar's sister that shatters their world.