archytele The Vault
Season guide

Under the Dome: Season 2

13 episodes Premiered Jun 30, 2014 Updated Oct 26, 2026

An invisible and mysterious force field descends upon the small fictional town of Chester's Mill, Maine, in the United States, trapping the residents inside and completely cutting them off from the rest of civilization. The trapped townspeople must discover the secrets, origins, and purpose of the dome or sphere, while simultaneously coming to learn more than they ever knew about each other. As the community struggle

Previously on Under the Dome

Season 2 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ An invisible and mysterious force field has descended upon the small town of Chester's Mill, Maine, trapping residents inside and cutting them off from the rest of civilization.
  • ⚡ The trapped townspeople are tasked with discovering the secrets, origins, and purpose of the dome or sphere.
  • ⚡ Living under the force field causes residents to learn more about each other than they ever knew before.
  • ⚡ Certain individuals attempt to use the situation to take power, leading to the formation of a resistance among the inhabitants.
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Season overview

An invisible and mysterious force field descends upon the small fictional town of Chester's Mill, Maine, in the United States, trapping the residents inside and completely cutting them off from the rest of civilization. The trapped townspeople must discover the secrets, origins, and purpose of the dome or sphere, while simultaneously coming to learn more than they ever knew about each other. As the community struggles to survive this unprecedented and unexplained situation, certain individuals attempt in concealed ways to take advantage of the circumstances and seize power for themselves. In response to these power grabs, a resistance movement forms among the inhabitants. Throughout this ordeal, the residents are forced to confront the realities of their confinement while dealing with the ongoing mystery of the barrier that surrounds their entire community.

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Season 2 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 2 Progress Shield

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Binge Efficiency Engine

Season 2: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

46%
54%
Mytharc (6): Crucial lore & season climaxes
Core (7): Character development & subplots
Side Quest (0): Standalone / filler
S2·E1 Mytharc

Heads Will Roll

Jun 30, 2014 · 42 min

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.

S2·E2 Core

Infestation

Jul 7, 2014 · 39 min

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

S2·E3 Core

Force Majeure

Jul 14, 2014 · 39 min

Big Jim conducts a census to see how long the town can survive on dwindling resources; acid rain threatens everyone.

S2·E4 Mytharc

Revelation

Jul 21, 2014 · 38 min

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.

S2·E5 Core

Reconciliation

Jul 28, 2014 · 42 min

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.

S2·E6 Core

In the Dark

Aug 4, 2014 · 39 min

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

S2·E7 Core

Going Home

Aug 11, 2014 · 40 min

As Barbie descends further into the mysterious tunnel in hope of finding Sam, he comes across a world filled with unanswered questions.

S2·E8 Core

Awakening

Aug 18, 2014 · 39 min

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.

S2·E9 Mytharc

The Red Door

Aug 25, 2014 · 42 min

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.

S2·E10 Mytharc

The Fall

Sep 1, 2014 · 42 min

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

S2·E11 Core

Black Ice

Sep 8, 2014 · 42 min

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.

S2·E12 Mytharc

Turn

Sep 15, 2014 · 40 min

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.

S2·E13 Mytharc

Go Now

Sep 22, 2014 · 40 min

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

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