After discovering that an asteroid the size of Texas will impact Earth in less than a month, NASA recruits a misfit team of deep-core drillers to save the planet.

A squad of U.S. Marines becomes the last line of defense against a global invasion.

When an asteroid threatens to collide with Earth, NASA honcho Dan Truman determines the only way to stop it is to drill into its surface and detonate a nuclear bomb. This leads him to renowned driller Harry Stamper, who agrees to helm the dangerous space mission provided he can bring along his own hotshot crew. Among them is the cocksure A.J. who Harry thinks isn't good enough for his daughter, until the mission proves otherwise.