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.
The lifelong friendship between Rafe McCawley and Danny Walker is put to the ultimate test when the two ace fighter pilots become entangled in a love triangle with beautiful Naval nurse Evelyn Johnson. But the rivalry between the friends-turned-foes is immediately put on hold when they find themselves at the center of Japan's devastating attack on Pearl Harbor on Dec. 7, 1941.
A representative of an alien race that went through drastic evolution to survive its own climate change, Klaatu comes to Earth to assess whether humanity can prevent the environmental damage they have inflicted on their own planet. When barred from speaking to the United Nations, he decides humankind shall be exterminated so the planet can survive.
