A group of tourists embarks on a whale-watching tour from Reykjavik, excited for a day of sea adventure. Among them are a Finnish woman, an American man, Japanese friends, a French family, and an Englishman. They gather on a dilapidated fishing boat, captained by a grizzled local. As they venture farther into the open ocean, their guide is incapacitated, leaving them stranded and vulnerable. The group’s excitement turns to dread when a family of deranged whalers, who reside deep in the Icelandic wilderness, discovers their presence.

The tourists face a nightmarish struggle for survival as they are hunted by the sadistic whaling family. Desperation sets in as the travelers realize they must rely on their own wits and cooperation to evade capture. The isolated ocean and the remoteness of their location heighten the terror, creating a claustrophobic atmosphere where danger lurks in every shadow. The tension mounts as escape seems increasingly impossible, transforming their once-exhilarating trip into a harrowing fight for their lives.