Marooned off the shore of a mysterious island, Mark Hawkins and the crew of the Magellan have set out to find their missing crew members. But if they thought flying snakes were bad, well, they're about to be introduced to Island 731's true terrors: crocodiles with tentacles, seagulls with teeth, and a strange creation called Kaiju who seems to possess marginal intelligence - along with the body of a gorilla, the arms of a polar bear, and the sharp spines of a porcupine.