Shortly after a skin diver steals lobsters from an old fisherman as part of a secret club initiation, he disappears. Mike Nelson finds his spear gun near the lobster pots ...

Nelson is hired to assist a Geology Professor who has found uranium deposits in an underwater cave. As Nelson is about to enter the cave,a freak underwater landslide trap ...

A beautiful millionairess who was crippled by a mountain climbing accident has her husband and doctor recommend scuba diving as therapy for her legs. Nelson is hired to w ...