While on an assignment photographing whales with companion Ken Drake (as Doctor Carpenter) for the military, Mike Nelson (Lloyd Bridges) reveals (in narration) he is working undercover. The pair notices an odd situation involving three phony fishermen in a dinghy. Apparently, they lose one man. It turns out to be missing guided missile scientist Mike Keene (as Ryder Dekker). Mr. Bridges dives into action, putting his life in danger by attempting to rescue Mr. Keene from an "Underwater Station" in the sea. The semi-regular supporting actors do a good job appearing as different characters.
**** Underwater Station (7/12/58) John Florea ~ Lloyd Bridges, Ken Drake, Mike Keene, John Lamb