Luke's sailing trip with friends takes a disastrous turn when his boat capsizes on an underwater rock. With a breached hull and sharks lurking in the water, Luke and his companions, including his former girlfriend Kate, must swim towards Turtle Island in Queensland, Australia, to survive.

The Reef
In the treacherous waters of the Great Barrier Reef, a group of sailors find themselves fighting for survival after their sailboat meets a tragic fate, only to be stalked by a monstrous great white shark.