Submarine Attack #51

In "Crisis Under Ice," an American patrol submarine and a Soviet submarine clash underwater in a desperate battle. The American skipper's submarine is in trouble and faces being sunk, while the Soviets pursue relentlessly; the story culminates with a torpedo strike on the lead Soviet vessel. Meanwhile, in a parallel sequence, Captain Nick Moore pilots a vertol aircraft on a mission; when an enemy aircraft is spotted, Moore's crew must act quickly to prevent disaster as the aircraft attempts an emergency landing, though not before achieving their objective.