In the Season 1 finale, Enos pits Maria and David against each other as the ultimate showdown pulls them back to where the nightmare began; Abigail makes a dangerous deal; and the Reverend fights for Grace's life.
Enos' demon army is revealed to be a brainwashed self-help cult, so David, Maria, Grace and Bledsoe pose as new recruits and attend the seminar to learn more. Once they arrive on Sangalo Island, they fear that Enos' trap could be impossible to escape.
Maria enlists the Reverend's help to destroy a demon and free David from jail before Enos gets to him first; and Grace struggles as she adjusts to life after possession. Meanwhile, Abigail grows stronger.
In the series premiere, a possessed exorcist and her troubled brother are forced into an alliance with a mysterious priest in order to defeat their own father, who has escaped from Hell with an army of demons at his command.