Their device is the Doomsday Clock. The Doomsday Clock Is At 90 Seconds ... worried about the fate of human existence. As far as a fallout bunker is concerned, it might be time to start heavily ...

Howard relents and resolves to help Bobby. This scene is rendered unforgettable by a depiction of the Doomsday Clock with its minute hand pointing at 15 seconds to midnight. In real life ...

The "Doomsday Clock" has been set at 90 seconds to midnight, closer than ever before to the threat of annihilation. But what is the Doomsday Clock? Who decides where it is set?