Under the Dome is the story of a small town that is suddenly and inexplicably sealed off from the rest of the world by an enormous transparent dome. The town's inhabitants must deal with surviving the post-apocalyptic conditions while searching for answers about the dome, where it came from and if and when it will go away.
They are all trapped inside.
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Did You Know?
Producers consider the dome itself to be the main antagonist of the series. See more
James 'Big Jim' Rennie
[Opening Narration, Season 3
Four weeks ago, an invisible dome crashed down on Chester's Mill, cutting us off from the rest of the world. The dome has tested our limits, forcing each of us to confront our own personal demons... rage... grief... fear. Now, in order to survive, we must battle our most dangerous adversary... the enemy within.