Scientists have discovered that two comets in the universe are rapidly approaching the earth. If nothing unexpected happens, they will eventually hit the earth, causing immeasurable damage to the earth. In order to avoid causing a world-class panic, the government blocked the news and secretly built a very strong fortress in Greenland. Only people who hide in the fortress can get a glimmer of hope, and the conditions for entering the fortress are very harsh. Jeff (Gerard Butler) is a construction engineer. He got the opportunity to enter the fortress, so he decided to go to Greenland with his wife Alison (Morena Baccarin) and son Nathan (Roger Dale Floyd). Who knew that halfway through the journey, the military, who had noticed the truth of the incident, began a riot.