Walter and his new friend begin to explore the ferry while Edith desperately searches for him to try to prevent his advance among the passengers. Tensions rise between both Marianne and Göran and Calle and Vincent. Cousins Albin and Lo begin to suspect that something is very wrong on the ferry. Dan is attacked on the karaoke stage while the conflict between him and the guard Pia escalates. Walter makes a new best friend.

Contact with land is broken. Pia watches in horror on the surveillance screens what is happening on the ferry. Meanwhile, unknowing passengers are partying hard at the nightclub. Pia makes a drastic decision. Lo and Albin have evidence of what is happening on the ferry, but no one listens to them. Marianne and Göran try to escape to a cabin. Dan decides to attend a snap staff meeting.