A billionaire big-game hunter (Richard Boone) leads an expedition to a mysterious "lost world" where he believes a living Tyrannosaurus rex can be found. Will the T. rex become the most prized creature in Boone's collection, or are he and his team destined to be the ferocious prehistoric beast's next meal? Joan Van Ark, Steven Keats co-star in this thrilling adventure tale from the Rankin-Bass studio. 106 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital mono.