Two low-level astronomers must go on a giant media tour to warn humankind of an approaching comet that will destroy planet Earth.
Kate Dibiasky (Jennifer Lawrence), an astronomy grad student, and her professor Dr. Randall Mindy (Leonardo DiCaprio) make an astounding discovery of a comet orbiting within the solar system. The problem - it's on a direct collision course with Earth. The other problem? No one really seems to care.