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.
No way in. No way out.
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Did You Know?
In the 3rd season, episode 2 when Junior burns down Big Jim's house, Big Jim confronts Junior. In the background when it would appear that Junior is looking at Big Jim as he is standing in front of a lake you can see a palm tree to the right of the screen in the background and a partial one to the left. Seeing as how Chester Mills is supposed to be located in Maine, palm trees wouldn't be that far north. 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.