The Final Countdown (1980). The year is 1980, and the USS Nimitz aircraft carrier is sailing the Pacific Ocean when all the sudden a massive electromagnetic storm approaches the USS Nimitz. They pass through a vortex and lose radio contact with the US Pacific Fleet Command at Pearl Harbor. They begin to return to Pearl Harbor, when they begin photographing, images have shown an intact row of US Pacific fleet battleships.... of which several were destroyed during the Japanese attack on Pearl Harbor on December 7, 1941. The captain and his crew are baffled. How could this be, unless they traveled back in time, and if they had, did that electromagnetic storm have something to do with it? And what do they do, as the Japanese are preparing to bomb Pearl Harbor? Do they try to prevent the attack? Do they allow history to take it's course? What happens if they were to alter history? Or.... is history always being altered with no one realizing it?