Terror runs deep.
Fishing and jobs are becoming scarce in the small seaport village of Graves Point, when mysterious deaths and unexplained disappearances begin to occur. Divers vanish and a young couple disappears at sea, their empty raft washing up on the shore. When a large, strange claw is discovered on the raft, the unsettled towns-people call on the marine biologist Dr. Herbert Talley (Ronald Guttman), who identifies it as belonging to a rare giant squid. With the help of Whip Dalton, the hunt is on! It becomes a battle of wills between Dalton and Talley as they try to locate the Beast, without the Beast getting them.