In eighteen days, the Earth will cease to exist as it collides with an asteroid the size of Texas. It is imperative to land on the asteroid as soon as possible, drill powerful nuclear charges deep beneath its surface, detonate them, and then just pray that it all works out. Saving the world in this brilliant way is a job made for a bunch of tough oilmen led by Harry S. Stamper (Bruce Willis), who treats the drilling rig and explosives like a neurosurgeon with a fine laser scalpel.
NASA's astronaut training is fast-paced, and in a few days, two shuttles with nuclear charges and the world's self-styled saviors on board are ready for launch. Can Bruce Willis and his men pull off the suicidally risky mission?