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Currently you are able to watch "Unknown World" streaming on Cultpix. It is also possible to buy "Unknown World" on Amazon Video as download or rent it on Amazon Video online.
You can also stream the title for free on Artiflix.
With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.
Wright Thompson, Jr.
Dr. Max A. Bauer
Andrew "Andy" Ostergaard
Dr. James Paxton
Dr. George Coleman
Carlisle Foundation Chairman
Dr. Joan Lindsey
Dr. Jeremiah Morley (uncredited)
