Under the Dome

The dome begins emitting a strong electromagnetic pulse, but Barbie meets the town's science teacher who thinks that she knows a way to neutralise it.

Barbie risks his life to help Rebecca save the Chester's Mill food supply when she discovers an infestation of butterfly eggs on the town's crops.

Big Jim implements the first phase of Rebecca's plan for population control, but Rebecca's own chances of survival look slim when she is abducted by the crazed local barber.

Rebecca develops a deadly strain of flu to escalate her plan to cull the population. While Julia and Sam try to stop her, Barbie helps the teens unearth clues to Melanie's past.

A faction remains loyal to Big Jim as Julia takes over as town leader, and her new status is questioned when a bomb goes off in the food store.

When Barbie and Sam set out to investigate a mysterious tunnel, a cave-in severs their path back to Chester's Mill.

Barbie discovers a new world when he descends further into the mysterious tunnel to search for Sam. The new place is familiar, but filled with unanswered questions.

Barbie discovers that his father knows more about the Dome than he is letting on. In Chester's Mill, Julia doubts the veracity of an email and Big Jim appoints himself sheriff.

Barbie is interrogated by his father's henchmen for information about the whereabouts of the egg. Pauline, Lyle and Sam try to find the red door in Zenith.

Climate change poses a new threat to Chester's Mill, as plans for the evacuation of the townsfolk get underway. Meanwhile, Junior sees visions of Angie.

As temperatures inside the Dome plummet to freezing, Julia is gravely injured and Lyle returns with a chilling prophesy of the future.

When a new threat from the Dome intensifies, the residents of Chester's Mill find themselves at risk of being crushed. Meanwhile, Melanie's health continues to deteriorate.

As the Dome continues to shrink, Julia and Barbie organise a mass evacuation through a tunnel in the crater. Big Jim goes on a murderous rampage.