The BEST Episodes of Under the Dome
Every episode ever - ranked by fan votes!
Last Updated: Sep 21, 2021
Network: CBS
An invisible and mysterious force field descends upon a small fictional town in the United States, trapping residents inside, cut off from the rest of civilization. The trapped townsfolk must discover the secrets and purpose of the "dome" and its origins, while coming to learn more than they ever knew about each other.
#1 - Exigent Circumstances
Season 1 - Episode 12 - Aired Sep 9, 2013
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.
7.90 
#2 - Pilot
Season 1 - Episode 1 - Aired Jun 24, 2013
The residents of Chester's Mill find themselves trapped under an enormous, transparent dome. Panic escalates as resources dwindle rapidly.
7.77 
#3 - Blue on Blue
Season 1 - Episode 5 - Aired Jul 22, 2013
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.
7.77 
#4 - The Fourth Hand
Season 1 - Episode 9 - Aired Aug 19, 2013
Barbie and Big Jim realize their lives are more intertwined than they knew when a mysterious woman makes an appearance in Chester's Mill.
7.74 
#5 - Curtains
Season 1 - Episode 13 - Aired Sep 16, 2013
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.
7.73 
#6 - Speak of the Devil
Season 1 - Episode 11 - Aired Sep 2, 2013
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.
7.70 
#7 - Let the Games Begin
Season 1 - Episode 10 - Aired Aug 26, 2013
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.
7.70 
#8 - Imperfect Circles
Season 1 - Episode 7 - Aired Aug 5, 2013
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.
7.69 
#9 - Thicker Than Water
Season 1 - Episode 8 - Aired Aug 12, 2013
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."
7.67 
#10 - Outbreak
Season 1 - Episode 4 - Aired Jul 15, 2013
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. Meanwhile, Julia continues to search for answers into her husband's disappearance.
7.66 
#11 - The Endless Thirst
Season 1 - Episode 6 - Aired Jul 29, 2013
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.
7.65 
#12 - Awakening
Season 2 - Episode 8 - Aired Aug 18, 2014
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.
7.63 
#13 - The Red Door
Season 2 - Episode 9 - Aired Aug 25, 2014
Barbie is apprehended by mysterious men and relentlessly interrogated about the Dome; Big Jim forms a deal that could permanently seal the fate of the Chester's Mill residents.
7.62 
#14 - Going Home
Season 2 - Episode 7 - Aired Aug 11, 2014
As Barbie descends further into the mysterious tunnel in hope of finding Sam, he comes across a world filled with unanswered questions.
7.62 
#15 - Black Ice
Season 2 - Episode 11 - Aired Sep 8, 2014
Rebecca and Sam try to save Chester's Mill residents as temperatures plunge; Barbie puts his life at risk to help Julia after a terrible accident.
7.62 
#16 - Go Now
Season 2 - Episode 13 - Aired Sep 22, 2014
Just as the walls start to close in on those trapped in Chester's Mill, a possible exit from the dome is revealed.
7.58 
#17 - Revelation
Season 2 - Episode 4 - Aired Jul 21, 2014
Rebecca and Big Jim consider extreme measures as the conditions worsen in Chester's Mill; clues about Melanie's connection to the dome are revealed.
7.57 
#18 - The Fire
Season 1 - Episode 2 - Aired Jul 1, 2013
Panic is heightened when a house catches on fire in Chester's Mill, but the fire department is outside of the Dome.
7.57 
#19 - The Fall
Season 2 - Episode 10 - Aired Sep 1, 2014
Big Jim finally learns what happened to his wife, Pauline; Chester's Mill faces a new threat -- climate change.
7.57 
#20 - Manhunt
Season 1 - Episode 3 - Aired Jul 8, 2013
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.
7.52 
#21 - Heads Will Roll
Season 2 - Episode 1 - Aired Jun 30, 2014
Barbie's life is in Big Jim's hands; the dome becomes magnetized; Julia tries to save the life of a mysterious girl who may have clues about the origin of the dome.
7.51 
#22 - Reconciliation
Season 2 - Episode 5 - Aired Jul 28, 2014
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.
7.51 
#23 - In the Dark
Season 2 - Episode 6 - Aired Aug 4, 2014
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 face off in a power struggle.
7.48 
#24 - Turn
Season 2 - Episode 12 - Aired Sep 15, 2014
The latest threat intensifies, leaving Chester's Mill residents at risk of being crushed to death; Melanie's health declines as the egg's fate remains uncertain.
7.45 
#25 - Force Majeure
Season 2 - Episode 3 - Aired Jul 14, 2014
Big Jim conducts a census to see how long the town can survive on dwindling resources; acid rain threatens everyone.
7.45