Four friends. A hike. And the deadly expanse of northern Sweden. Every summer, lawyer Anna, her fiancé Henrik and her best friend Milena travel to the north of Sweden to forget everyday life in Stockholm while hiking in the wild nature. But this year, Milena's new boyfriend, Jakob, has joined the group. He suggests deviating from the original route and hiking into the wild, lonely Sarek National Park instead. It soon becomes clear that the tour will be anything but a leisurely excursion among friends. Jakob incites the group to ever more, more dangerous challenges. The dynamic between them also changes - long-suppressed accusations and secrets come to light, nerves are on edge. Soon it is only about one thing: Who will return home?