A possessed exorcist is forced into a dangerous alliance with a mysterious priest in order to defeat her own father and his army of demons.

Maria’s birthday. Blindfolded before a swinging piñata, she hits it and tears it open. Odd, unsmiling children swarm around the candy. Suddenly, Maria is swept into the arms of her father, who whispers in her ear: “You’ll always be my baby girl, no matter what.” It isn’t sweet.

Maria enlists Bledsoe’s help to destroy a demon and free David from jail. Grace adjusts to life after possession, and Abigail grows stronger.

In order to rescue Grace, Maria must trespass into Purgatory and face a ghost from her own past; and Enos' dark forces draw closer. Meanwhile, David confronts a terrible secret.

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.

A demonic lover makes Abigail an indecent proposal as Maria and Dusty grow closer; and the Reverend forbids his daughter from seeing David. Meanwhile, Grace searches for the truth about her mother.

Tensions rise as the Society of Sons targets David and Grace; Maria faces a mad demon that Abigail is helpless against; Bledsoe's past comes back to haunt him; and Grace discovers a mysterious power.