Harri is a lieutenant colonel in the Estonian army embarking on missions to Iraq and Afghanistan. He is divorced and only sees his 10-year old son on holidays from time to time. Struggling with the guilt of not being there for his estranged son, Harri decides to make up for lost time by going to an adventurous father-son winter trip to an island where he used to go with his father as a boy. Due to the slow queue in the harbor, Harri decides to take the quicker way — a local ice road over the frozen sea. While arguing with his ex-wife on the phone, Harri loses the tracks and an accident occurs. The car falls through the ice into the cold water.