Writer: William Read Woodfield
Prod: Ivan Tors
Dir.: John Florea

Mike Nelson : Lloyd Bridges
Robert Tyler: Leonard Nimoy

Maria Tyler has drowned. Her worried husband, Robert Tyler, is sitting at the police station and shows the latest underwater photos he has taken of her. He blames himself for having been diving so deep with her that she did not survive. Something arouses the suspicion of the police officer. He asks his friend, Mike Nelson (Lloyed Bridges), in to help him.

They discover that a photo taken at the acclaimed depth would not show the colors this photo does. But they would not get a confession without a body. The plan is that Mike goes diving with Robert Tyler at the same place his wife has died. He made him believe it would be possible to discover the body with the help of a newly developed kind of oxygen which makes it now possible to dive this deep. Under water the plan works. Tyler gets nervous and tries to flee taking the boat and trying to kill Mike by running him over with it. Mike dives and puts his scuba into the propellers of the boat. The boat is stopped, they fight and Tyler is giving up.