S04E06Super Friends season 4 episode 6: Terror at 20,000 Fathoms
Aired 27 October 197960 min
Where to watch Super Friends Season 4 in Australia
Super Friends season 4 is streaming in Australia on Prime Video (subscription).
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Availability checked 16 November 2026.
What happens in “Terror at 20,000 Fathoms”
The evil Captain Nimoy plots to use nuclear warhead missiles to sink continents below the sea where he plans to rule. Nimoy is aided by an android duplicate of Batman to help him out, but with Superman and Wonder Woman away on a space mission, the Super Friends are aided by Superman's tiny Kryptonian friends from the bottle city of Kandor.
Episode summary: TMDB.
Before you watch
- It is episode 6 of 8 of season 4, so watch episodes 1 to 5 first.
- It runs about 60 minutes.
More from Super Friends Season 4
Previous · S04E05Universe of Evil20 October 1979
Next · S04E07The Super Friends Meet Frankenstein3 November 1979Every episode of Season 4Super Friends episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.