During routine maintenance, the USS Nimitz encountered a strange storm and suddenly lost contact with the US Pacific Fleet. After encountering a Japanese "0" reconnaissance aircraft and discovering that Pearl Harbor was full of warships before World War II, the officers and soldiers on the ship realized that their aircraft carrier had traveled through the time tunnel and returned to Pearl Harbor on the eve of World War II. The officers and soldiers on the ship further discovered that the Japanese aircraft carrier fleet was about to attack Pearl Harbor and start the war. They could either use their advanced fighters and missiles to preemptively attack the Japanese fleet, thereby avoiding the catastrophe of Pearl Harbor and changing history at the same time; or stay away from Pearl Harbor and let history develop naturally. What annoyed everyone even more was that the senator they rescued disappeared in an instant before Japan launched the attack on Pearl Harbor. The attack was imminent, and they had to make a choice...