An invisible and mysterious force field descends upon a small actual town of Chester's Mill, Maine, USA, trapping residents inside, cut off from the rest of civilization. The trapped townspeople must discover the secrets and purpose of the "dome" or "sphere" and its origins, while coming to learn more than they ever knew about each other and animals too.
They are all trapped inside.
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Did You Know?
Dean Norris, Samantha Mathis, Brett Cullen, Beth Broderick and Jeff Fahey have all also appeared on Lost. 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.