Ice Station Zebra

The nuclear submarine "Dolphin" has impossible orders: Sail beneath the ice floes of the Arctic Ocean to locate and rescue the men of research station Zebra, gutted by fire and drifting with the ice pack somewhere within the Arctic Circle. But the orders can't prepare the crew for what they'll find if their mission is successful -- that the fire at Ice Station Zebra was sabotage and one of the survivors is a killer ...