Under the Dome

The residents of Chester's Mill find themselves trapped under an enormous, transparent dome; panic escalates as resources dwindle rapidly.

After a former deputy goes rogue, Big Jim asks Barbie to help keep the town safe; Junior determines to escape the dome by going underground.

The people of Chester's Mill panic as a meningitis outbreak hits the town, threatening their limited stock of medical supplies; Julia looks for answers about her husband's disappearance.

Residents of Chester's Mill are surprised when they are visited by loved ones from the other side; everyone prepares for a threat from outside the dome.