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Season 02, Episode 3 - "Force Majeure" When tensions in Chester's Mill continue to rise as resources dwindle, Big Jim holds a census in order to forecast how long the town can continue to exist under the dire conditions. Meanwhile, a rainstorm brings much-needed water until it changes to acid rain, threatening the lives of everyone it touches. Also, Rebecca and Lyle butt heads over the reasons for the dome's existence.
Season 02, Episode 4 - "Revelation" As conditions in Chester's Mill worsen, Big Jim and Rebecca consider resorting to the extreme measure of population control, which drives a wedge between Barbie and Julia. Meanwhile, clues to Melanie's past and her connection to the Dome are revealed.
Season 2, Episode 05 - "Reconciliation"
Julia takes over as the new leader of Chester's Mill, after the town becomes divided over Big Jim and Rebecca's population-control plan. Meanwhile, Joe and Norrie help Melanie search for clues about her identity at the dome wall.