This episode sets the stage for the series finale, " The Enemy Within ," as the dome's barrier finally begins its terminal breakdown. AI responses may include mistakes. Learn more Under the Dome recap: Incandescance - Entertainment Weekly
As oxygen levels drop, Joe McAlister is under immense pressure to complete the device intended to bring the dome down. Under the Dome Season 3 - Episode 12
Killed by Big Jim during his attempt to murder Joe. Production Details Original Air Date: September 3, 2015. Director: P.J. Pesce. This episode sets the stage for the series