Atomic Thaw Icebound Dinosaur War

In 1956 a polar blast exposes a buried tropical valley. A multinational scientific party mounts a treacherous glacier trek to investigate—only to descend into a steaming, prehistoric jungle where hulking reptiles fight a savage, primeval war. Rival agents from East and West attempt to enslave the beasts as living weapons, and vintage jets and outmoded radios give way to tooth-and-claw warfare. Against stop-motion horrors and cracking ice, the explorers must outwit saboteurs and survive jungle ambushes to bury the secret before atomic panic ignites global war.