When Barbie descends into the unknown abyss in the mysterious tunnel to look for Sam, he discovers a world that is familiar but filled with unanswered questions.
When Barbie and Sam set out to investigate a mysterious tunnel, a cave-in severs their path back to Chester's Mill.
Julia takes over as the leader of Chester's Mill after the town becomes divided in the wake of Big Jim and Rebecca's plans for population control.
As conditions in Chester's Mill worsen, Big Jim and Rebecca consider resorting to the extreme measure of population control, which drives a wedge between Barbie and Julia. Dwight Yoakam guest stars.
When tensions in Chester's Mill continue to rise as resources dwindle, Big Jim holds a census in order to forecast how long the town can continue to exist under the dire conditions. Dwight Yoakam guest stars.
Barbie risks his life to help Rebecca save the Chester's Mill food supply when she discovers an infestation of butterfly eggs on the town's crops.
Secrets of the Dome are revealed and Big Jim is determined to put an end to Barbie once and for all.
While the manhunt for Barbie continues, Big Jim gets the residents of Chester's Mill riled up and the town demands justice for all of Barbie's supposed crimes.
Big Jim turns the town against Barbie when the truth about his past is revealed. Meanwhile, Maxine makes it personal when she confronts Barbie's closest ally.
Julia uncovers the truth about her husband's disappearance and unravels some of Chester's Mill's darkest secrets.
Big Jim and Barbie discover their lives are more intertwined than they knew when a mysterious woman, Maxine, shows up unexpectedly in Chester's Mill.
Junior stands up to his father and is shattered when he discovers the truth about his mother's past.
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 arrives.
When the town begins to run low on water, the residents of Chester's Mill begin to fight for the remaining resources.
The Chester's Mill residents receive an unexpected visit from their loved ones on the other side.
The People of Chester's Mill fall into a state of panic as an outbreak of meningitis strikes their community, threatening their already depleted medical supplies.
Exclusive Clip for episode "Outbreak" of Under The Dome.
Junior finds out how much some people hate Big Jim.
Barbie gets discovered outside the Dome.
Barbie tries to give Julia a message from outside the dome.
Barbie tries to get through a military check point to get to the Dome.
The hounds say 'no thank you' to Aktaion Energy with graffiti on their new headquarters construction. Watch Under The Dome Mondays at 10/9c, only CBS!
Big Jim becomes Sheriff and tells Junior what he did wrong in the past.
Barbie tries to explore the tunnel but falls into a seemingly bottomless pit.
Joe sends a robot with a camera into the tunnel to see what is at the bottom of the cliff that Sam and Barbie fell from.
Sam finds his way out of the Dome and reunites with his sister, Pauline.
Barbie meets his father when he winds up outside of the Dome and asks for his help to get back for Julia.
Julia and the four hands find hope for Barbie when they are given a vision of what lies beyond the tunnel.
Big Jim is shocked to find out what happened to Barbie in the tunnel.
Joe, Norrie and Melanie's latest vlog reveals efforts to stave off an energy crisis in Chester's Mill. Watch Under The Dome Mondays at 10/9c, only CBS!
The kids try to figure out what it takes to get the egg back.
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