Synopsis: Director Rene Cardona Jr. has managed to make a very convincing horror tale set square in the Bermuda Triangle - still one of the greatest mysteries on Earth. This place, which has reportedly swallowed up hundreds of ships, planes and human lives without even a trace, now reaches out to devour the Marvin family and their crew of underwater photographers and sailors who have come to photograph the ruins of a sunken city. Once in the grip of the Triangle, the crew begins to experience bizarre happenings, starting with the reception of a radio broadcast from a ship which had disappeared a hundred years ago!