A few days after Christmas, half-sisters Ida and Tuva venture out on a recreational winter dive to the remote Norwegian coast. The two sisters' lives fall into danger when a rockfall traps one of the sisters on the ocean floor. A battle against time begins in the middle of the wilderness.
"Keeps viewers glued to the edge of their seats from beginning to end."
Bonus Features include: Behind-the-scenes featurettes on the unique underwater filming conditions. Interviews with the cast and crew and Time-lapse of the underwater set construction.