UFO - Season 1 - Eps 8: Sub-Smash
Suspecting a UFO to be responsible for the sinking of a freighter, Straker, Foster and Nina Barry investigate in Skydiver. Attacked by an undersea UFO, the submarine is downed on a ledge on the sea bed and the crew are trapped. While Straker fights against his claustrophobia, Nina faces a living nightmare...
About UFO

Title: UFO
First Air Date: 1970-09-16
Last Air Date: 1973-03-15
Status: Ended
Rating: 7.6/10 (from 45 votes)
Language: EN
Seasons: 2
Total Episodes: 26
Network: Associated Television
Genres: Sci-Fi & Fantasy, Drama, Action & Adventure
Production Companies: Century 21 Television, ITC Entertainment
Synopsis
A secret, high-technology international agency called SHADO defends Earth from alien invaders.
Cast

Ed Bishop
Cmdr. Ed Straker