4 Season
110 Episode
Voyage to the Bottom of the Sea - Season 3 Episode 25 Deadly Cloud
A mysterious cloud is enveloping the Earth and causing massive Tsunami and other catastrophic environmental damage. Crane takes the flying sub in to find out the cause and is taken over by an evil alien. Once aboard, this alien tries to stop Nelson before he can destroy the cloud with nuclear weapons.
- Year: 1968
- Country: United States of America
- Genre: Action & Adventure, Drama, Sci-Fi & Fantasy
- Studio: ABC
- Keyword: submarine, underwater
- Director: Irwin Allen
- Cast: Richard Basehart, David Hedison, Terry Becker, Del Monroe, Paul Trinka, Richard Bull