The Exorcist

Six months after leaving Chicago, Father Tomas continues his training to become an exorcist under the watchful eye of his partner Marcus Keane. Their travels lead them to a troubled young woman in rural Montana, where their investigation puts them in the crosshairs of her extended family. But as Tomas' skills continue to grow, Marcus begins to worry that his apprentice is taking unnecessary risks.

Tomas and Marcus attempt to escape the custody of Cindy's enraged family, while simultaneously trying to finish her exorcism. Rose conducts her inspection of Andy Kim's household and is concerned about Caleb's mental state.

The situation at the foster home continues to deteriorate, as Andy tries to help his foster daughter, Grace overcome her agoraphobia.

As Andy confronts the strange incidents taking place on the island, his foster home receives a surprising new addition. Marcus investigates a series of natural disturbances with the help of a local wildlife biologist, while Tomas continues to question the strange visions that led him to Seattle. Meanwhile, Bennett's uneasy partnership with the enigmatic Mouse takes a dark turn.

As Tomas and Marcus continue to investigate the strange incidents at the foster home, the demon finally makes its presence known. The two priests must race against the clock to find evidence of possession before it is too late.