Chad Gates has just gotten out of the Army, and is happy to be back in Hawaii with his surf-board, his beach buddies, and his girlfriend.

The Beast from 20,000 Fathoms is a 1953 science fiction film directed by Eugène Lourié and stars Paul Christian, Paula Raymond and Cecil Kellaway with visual effects by Ray Harryhausen. The film is about an atomic bomb test in the Arctic Circle that unfreezes a hibernating fictional dinosaur, a Rhedosaurus, that begins to wreak havoc in New York City.

Lin McAdam rides into town on the trail of Dutch Henry Brown, only to find himself in a shooting competition against him. McAdam wins the prize, a one-in-a-thousand Winchester rifle, but Dutch steals it and leaves town. McAdam follows, intent on settling his old quarrel, while the rifle keeps changing hands and touching a number of lives.

Jeff Bailey seems to be a mundane gas station owner in remote Bridgeport, CA. He is dating local girl Ann Miller and lives a quiet life. But Jeff has a secret past, and when a mysterious stranger arrives in town, Jeff is forced to return to the dark world he had tried to escape.