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Atlantis survivor Mark Harris breathes underwater, withstands extreme depth pressures and wields superhuman strength.
Last Episode Aired
1978-06-06
S1E13 — Deadly Carnival
Mark goes undercover to investigate members of a carnival planning to break into a museum. The only way to break into the museum is through an underwater tunnel, through which only Mark can swim. When he is approached, he refuses. The owner of the carnival is then kidnapped and threatened unless Mark helps.
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Amazon Video
Apple TV Store
Google Play Movies
Availability data provided by JustWatch via TMDB
Billed Cast
Patrick Duffy
Mark Harris
Belinda Montgomery
Dr. Elizabeth Merrill
Alan Fudge
Dr. Crawford
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