故事发生在一个名为切斯特磨坊的小镇上，一个从天而降且不可摧毁的“穹顶”断绝了小镇和外界的一切联系，同时也终结了小镇维持多年的平静假象。很快，小镇居民们便看清了他们如今已成“瓮中之鳖”的现实，而随着资源的不断消耗，混乱不可避免的发生了。在老警长意外去世后，维持小镇治安的重 担落到了年轻的副警长琳达肩上，而议员大吉姆则从中看到了成为“统治者”的大好机会。一些奇怪的症状出现在了磨坊镇的四个孩子们的身上，在树林里，他们发现了一个小型的穹顶并且成为了它的保护者，因为穹顶似乎在向他们传达某一些讯息。当犯罪和危险的气息在小镇上渐渐弥漫开来之时，越来越多的迹象显示，穹顶选择磨坊镇，这并不是一个巧合。
穹顶之下 (季节 1)
Pilot (集 1) 7.7
编剧: Brian K. Vaughan
播出日期: 2013-06-24
运行时间: 45 min
概述: The residents of Chester's Mill find themselves trapped under an enormous, transparent dome. Panic escalates as resources dwindle rapidly.
The Fire (集 2) 6.9
编剧: Rick Cleveland
播出日期: 2013-07-01
运行时间: 40 min
概述: Following Duke's death, his house catches fire, forcing the town to rally together to form a bucket brigade. Elsewhere, Junior ambushes Barbie, while Dodee and Phil pick up a military frequency.
Manhunt (集 3) 6.7
编剧: Adam Stein
播出日期: 2013-07-08
运行时间: 41 min
概述: When a former deputy goes rogue, Big Jim recruits Barbie to join the manhunt to keep the town safe. Meanwhile, Junior is determined to escape the Dome by going underground.
Outbreak (集 4) 6.4
编剧: Peter Calloway
播出日期: 2013-07-15
运行时间: 43 min
概述: The people of Chester's Mill panicked state when a meningitis outbreak hits the community, threatening the already scarce supply of drugs. Meanwhile, Julia continues to seek answers to her husband's disappearance
Blue on Blue (集 5) 6.9
编剧: Brian K. Vaughan
播出日期: 2013-07-22
运行时间: 42 min
概述: 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.
The Endless Thirst (集 6) 6.9
编剧: Soo Hugh
播出日期: 2013-07-29
运行时间: 42 min
概述: 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 town's residents have with the Dome.
Imperfect Circles (集 7) 6.4
编剧: Caitlin Parrish
播出日期: 2013-08-05
运行时间: 42 min
概述: 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.
Thicker Than Water (集 8) 6.8
编剧: Adam Stein
播出日期: 2013-08-12
运行时间: 43 min
概述: Junior stands up to his father and is shattered when he discovers the truth about his mother's past. Meanwhile, Julia learns firsthand the powers of the "mini dome."
The Fourth Hand (集 9) 6.7
编剧: Daniel Truly
播出日期: 2013-08-19
运行时间: 42 min
概述: Barbie and Big Jim realize their lives are more intertwined than they knew when a mysterious woman makes an appearance in Chester's Mill.
Let the Games Begin (集 10) 6.3
编剧: Peter Calloway
播出日期: 2013-08-26
运行时间: 44 min
概述: Julia uncovers the truth about her husband's disappearance and unravels some of Chester's Mill's darkest secrets. Meanwhile, Maxine shows Barbie how she plans to take control of the town.
Speak of the Devil (集 11) 6.7
编剧: Scott Gold
播出日期: 2013-09-02
运行时间: 40 min
概述: 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.
Exigent Circumstances (集 12) 6.9
编剧: Adam Stein
播出日期: 2013-09-09
运行时间: 43 min
概述: 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. Meanwhile, Joe and Norrie must find a new hiding place for the mini dome.
Curtains (集 13) 6.7
编剧: Brian K. Vaughan
播出日期: 2013-09-16
运行时间: 40 min
概述: 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 Monarch is after receiving a shocking visit from a familiar face.
季
集 13
集 13
集 13
集 1