Under the Dome Wiki
Season 3, Episode 12
Incandescence (6).jpg
Air Date September 3, 2015
Written By Bronwyn Garrity & Cathryn Humphris
Directed By PJ Pesce
U.S. Viewers 3.70 Million
Other Episodes
← previous
Love is a Battlefield
next →
The Enemy Within
Cast Guide
Episode Gallery

Incandescence is the twelfth episode of Season 3 of CBS' Under the Dome, which aired on September 3, 2015. It is the thirty-eighth episode overall.


When the Dome's calcification process accelerates, Chester's Mill has 24 hours before the barrier's breakdown will suffocate everyone inside. While the new deadline puts added pressure on Joe to bring the Dome down, Barbie and Julia race to save his child from The Kinship. Also, Big Jim tries to manage the increasingly volatile Hektor, who is adamant that the infected townspeople never escape the Dome.



Main Cast[]

Supporting Cast[]

Guest Stars





  • First (and last) appearance of Ronald.
  • Last appearance of Dava Bloom.
  • Last appearance of Hektor Martin.
  • Last appearance of Christine Price.
  • This is the least viewed episode in the U.S. out of all episodes in the series.
  • The title is a term used to describe the emission of electromagnetic radiation and visible light from a hot body as a result of its temperature.
    • This refers to Christine's energy being absorbed by the new Kinship queen Dawn.
Episodes of Under the Dome
Season 1 "Pilot" • "The Fire" • "Manhunt" • "Outbreak" • "Blue on Blue" • "The Endless Thirst" • "Imperfect Circles" • "Thicker Than Water" • "The Fourth Hand" • "Let the Games Begin" • "Speak of the Devil" • "Exigent Circumstances" • "Curtains"
Season 2 "Heads Will Roll" • "Infestation" • "Force Majeure" • "Revelation" • "Reconciliation" • "In the Dark" • "Going Home" • "Awakening" • "The Red Door" • "The Fall" • "Black Ice" • "Turn" • "Go Now"
Season 3 "Move On" • "But I'm Not" • "Redux" • "The Kinship" • "Alaska" • "Caged" • "Ejecta" • "Breaking Point" • "Plan B" • "Legacy" • "Love is a Battlefield" • "Incandescence" • "The Enemy Within"