Kristen uncovers Leland's sinister plan involving her ovum. Sheryl's role escalates the mother-daughter conflict. Meanwhile, David, Ben, and Kristen investigate a particle accelerator that could be a portal to Hell.
Kristen, David, and Ben investigate a suspected werewolf attack. Andy deals with unexplained trauma. Ben applies scientific methods to address a Jinn-related issue.
Potentially demonic pork products lead Kristen, David, and Ben to a pig farm to investigate. David increases his remote viewing skills and Leslie, the surrogate carrying Kristen's child, comes to her for help.
A couple seeking an exorcism are plagued by a demon that takes away the ability to speak clearly, and its influence spreads to the team. Andy is pushed to deadly measures, and Andrea confronts a demon attached to Father Ignatius.
Kristen, David, and Ben travel to the Vatican with a possible relic from Jesus' cross. Back in New York, the Bouchard girls face increasingly strange and sinister incidents in the house.