"The epic story of Chester's Mill, a town suddenly cut off from the rest of the world by a massive dome. The residents struggle to break free of their nightmare and maintain control, while facing every new obstacle that comes their way. As the truth about the dome begins to unravel, it becomes clear that some won't make it out alive"--Container.

In Season two of Under the Dome, the people of Chester's Mill struggle to break free of their nightmare, as a mysterious stranger and diminishing food supply threaten their very survival. Big Jim, driven by his lust for power, assumes the role of town sheriff. Meanwhile, someone has discovered a way out of the dome; will the rest escape?