Improbable, but plausible, the story of an USA aircraft carrier traveling backwards in time, just before the start of WWII. The USS Nimitz is cruising peacefully 200 miles off Pearl Harbor when it's caught in a massive electrical storm and almost immediately the sea becomes calm again. The reconnaissance photos taken after the storm plots their position and indicates a blow-up of Pearl Harbor, circa 1941 with the battleship Arizona visible in the photo. This seems impossible to the crew. It then dawns on the officers that somehow they have traveled back in time and they must now decide whether or not to change the course of history.