With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.Unknown World featuring Bruce Kellogg and Otto Waldis is free on Tubi, and available for rent or purchase on Prime Video. It's an Action & Adventure and Science Fiction movie with a low IMDb audience rating of 4.1 (1,130 votes).
Where to Watch Unknown Worldi
Cast & Crew
Reelgood Watch Guide
Available to watch free online (Tubi).
Available to rent or buy from $1.99 on 1 service (Prime Video).
Not available to stream on a subscription service.
Not available to stream on a TV everywhere service.
#2039 Ranked in Science Movies
#4123 Ranked in Science-Fiction Movies
#18260 Ranked in Action & Adventure Movies
Unknown World has a low IMDb audience rating of 4.1 (1,130 votes). The movie is somewhat popular with Reelgood users lately.