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.
|Tagline:||THE ADVENTURE YOU WILL NEVER FORGET!|
|Cast:||Andrew Lodge, Andrew McCulloch, Anthony Ainley, Ben Howard, Bobby Parr, Brian Hall, Colin Farrell, Declan Mulholland, Doug McClure, Godfrey James, Grahame Mallard, John McEnery, Keith Barron, Peter Sproule, Ron Pember, Roy Holder, Stanley McGeagh, Steve James, Susan Penhaligon|
|Country:||United Kingdom, USA|