Just as the walls start to close in on those trapped in Chester’s Mill, a possible exit from the dome is revealed.

Big Jim finally learns what happened to his wife, Pauline; Chester’s Mill faces a new threat — climate change.

Barbie turns to his father for help contacting Julia but realizes that he may not be trustworthy; Big Jim declares himself sheriff of Chester’s Mill.

A cave-in severs Barbie and Sam’s path back to Chester’s Mill during their investigation of a mysterious tunnel; a dust storm rages through the town, as Big Jim and Julia…

After Big Jim and Rebecca’s plan left the town divided, Julia takes over as the leader of Chester’s Mill; Norrie and Joe help Melanie find more clues.

When Rebecca discovers an infestation of butterfly eggs on the crops, Barbie risks his life to help her save the town’s food supply.

Secrets of the Dome are revealed and Big Jim is determined to put an end to Barbie once and for all. Meanwhile, Junior, Angie, Joe and Norrie discover who the…

Barbie and Big Jim realize their lives are more intertwined than they knew when a mysterious woman makes an appearance in Chester’s Mill.

Big Jim takes matters into his own hands when he feels his authority slipping away, and the Dome displays its power when a life is taken just as a newborn…

The Chester’s Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome.

When the town begins to run low on water, the residents of Chester’s Mill begin to fight for the remaining resources. Meanwhile, Julia discovers a strange connection that two of…

The residents of Chester’s Mill find themselves trapped under an enormous, transparent dome. Panic escalates as resources dwindle rapidly.