When a former deputy goes rogue, Big Jim recruits Barbie to join the manhunt to keep the town safe. Meanwhile, Junior is determined to escape the Dome by going underground.

Pete and Myka capture Paracelsus but not before he makes himself immortal. When Myka's cancer becomes worse, Pete must make a deal with Paracelsus to cure his partner. Meanwhile, Claudia…

Hal finally reveals his internal struggle to everyone, and it doesn’t bode well for the Masons. Lourdes experiments with a risky new medical procedure. And Charleston’s government sees a massive…

Holder and Linden get a break in the case; Seward clashes with death; Bullet becomes a protector.

Holder and Linden get a break in the case; Seward clashes with death; Bullet becomes a protector.

Alec’s mother is shot by a bullet meant for Julian. Dillon’s new Liber8 task force is put to the test when Kiera must decide how far she will go to…

Alec’s mother is shot by a bullet meant for Julian. Dillon’s new Liber8 task force is put to the test when Kiera must decide how far she will go to…

Panic is heightened when a house catches on fire in Chester's Mill, but the fire department is outside of the Dome.

Pete, Myka, and Charlotte must track down Sutton, the only man who knows where they can find Paracelsus and exchange the Philosopher's Stone for the stele that will free Claudia…

When a mission goes terribly awry, Tom and Pope must rely on each other to survive. Meanwhile, Weaver and company search desperately for two members of the 2nd Mass who…