When a crisis hits, it's hard to say how any of us will react. Tomas (Johannes Bah Kuhnke), a handsome alpha-male type, has managed to drag himself away from work to join his family on a skiing trip in the French Alps. The first day of the holiday passes without incident, but on the second, their lunch at an outdoor terrace restaurant is interrupted when a controlled avalanche starts further up the slopes. Tomas begins to film it on his smartphone, casually reassuring his concerned son that the situation is under control. But as the advancing cloud of snow threatens to engulf them, Tomas dashes from the table — leaving his kids and wife Ebba (Lisa Loven Kongsli) behind.