The sun is setting on couples Rico and Eva and Friedrich and Julia's forest road trip. Tight bonds have formed across the group, none more so than between free-spirited Rico and vertical thinker Friedrich, who is coming to terms with a side of his sexuality that had previously remained in the shadows. As the foursome drink, party, swim and while away the hours by a picturesque lake, the food supplies dwindle, and the sheen starts to come off their idyllic escape.

Their 20th wedding anniversary is coming up and Liane and Ben want to celebrate it together in Lisbon. In the years of their marriage, the two have had little of each other. While Liane took care of the children and the household, architect Ben jetted around the world building luxury hotels. Now the children are out of the house and the couple want to spend more time together again. So much for the theory. In reality, Ben is stuck on a project in Morocco and can't pick up his wife at the airport in Lisbon. He has sent his friend, the Portuguese João, as a replacement. He takes his role very seriously and Liane obviously takes a liking to the new man at her side.

Scientists try to simulate the Big Bang and the experiment gets out of control. While satellites come down and chaos arises, the stories of several people trying to survive is told.

Jannik should actually be doing his bachelor's degree. Instead, he embarks on a destructive, self-destructive path.