Mike gets mixed up with two scientists trying to examine fossils from the sea. ...

While off the coast filming whales, Mike and his boat-mate learn another guided missile expert has disappeared in the area. Investigating suspicious activity by some dive ...

Two prospectors (one of whom is at times violently paranoid about being cheated) ask Nelson to join them in a search for uranium deposits in a river bottom. When after tw ...

Mike comes to the aid of a young diver - in more ways than one. ...