Ex-navy Underwater Demolition Team Officer Mike Nelson continues his skin-diving as a postwar profession, combining mastery of the SCUBA and spear with a flair for dangerous investigation.
A Red scientist defects to the West and comes to the U.S. Kidnapped by Communist agents. He is soon aboard a Pacific liner en route to Moscow. Mike Nelson drives a midget submarine through the shark-infested Pacific and storms the heavily-guarded liner.
S1E12 26 min
