Magnus Dens, a traumatized college dropout, returns to Bermuda to uncover the truth behind his father's mysterious death. He joins colleagues Eric and Dr. Paulis at the Bermuda Biological Station to hunt for giant sea creatures. There, he reconnects with Jennie Haniver, a young woman who has lived forever young due to a centuries-old pact with the Devil. Despite warnings from Dr. Paulis' housekeeper, Magnus and his friends trap a giant sea turtle, setting the stage for a deadly confrontation with the Devil's minions.

The Bermuda Depths
In the depths of the ocean, a team of scientists makes a groundbreaking discovery, but their triumph is short-lived as they face off against a gargantuan turtle and the vengeful spirit of a young swimmer, amidst the ominous and treacherous waters of the Bermuda Triangle.