During World War I, a German U-boat sinks a British ship and takes the survivors on board. After it takes a wrong turn, the submarine takes them to the unknown land of Caprona, where they find dinosaurs and neanderthals.
Runtime: 90 minutes
Release Date 1975-08-13
Budget: $1,500,000.00
Tagline: THE ADVENTURE YOU WILL NEVER FORGET!
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