When their boat plows into a rock during a pleasure cruise, five friends (Marc Bacher, Brianna Brown, Hadley Fraser, Nick Mennell and Emily Foxler) swim to safety on a deserted island, only to learn they aren't alone. It turns out a race of ancient creatures calls the island home ... and they've got a taste for human flesh. With odds like that, exiting the island with their lives intact will be next to impossible.