Jeff enlists tech-savvy E.J. to help in his search for his brother Nate. Skye finally reveals to Jeff that she took the researcher job on “Cult” to learn more about Steven Rae. Meanwhile, at the production office, associate producer Peter Grey brushes off Skye’s concerns that some of the “Cult” fans believe there are hidden messages embedded in the show. On the television show, Kelly and Paz discover a body buried vertically, and Kelly believes that this might be a message from Billy.

Jeff finds a surprise visitor in Nate’s apartment who tells him about a dangerous on-campus game that Nate had been hosting known as "Being Billy," which involves role-playing scenes from past "Cult" episodes. Jeff and Skye follow clues that might explain the next scene the players will try to recreate. Meanwhile, E.J. (Stacy Farber) searches Nate’s laptop and finds that he’s been active online and sent a cryptic email to a hidden recipient list. On the television show, Kelly confronts Billy.

Jeff tells Skye about Ama, a woman he met on a “Cult” fan site who claims that her husband is missing after becoming obsessed with the show. When they finally meet her, Jeff notices that she has a “Cult” notebook that looks eerily like Nate’s notebook. Ama introduces Jeff and Skye to a man who finds and deprograms cult members. EJ locates an IP address on a disk that could bring Jeff and Skye one step closer to finding Nate. Meanwhile, on the television show, Kelly finds Professor Patrick, the man who deprogrammed her, at Billy’s compound.

Skye collapses the morning after the “Cult” fan party, suffering a serious reaction to the drug she was slipped. The doctors urge Jeff to locate a sample of the drug so they can find a way to reverse its effects in order to save Skye’s life. Detective Sakelik arrives at the hospital but refuses to help. Jeff suspects that the drug might be hidden at her place so he takes matters into his own hands. Meanwhile, inside Skye’s hallucinogenic state, Billy, Kelly and Skye’s father Quentin encourage Skye to give up and stop searching for the truth.

E.J. slips Jeff a copy of Sakelik’s police personnel file which reveals that Sakelik was taken into custody by Child Protective Services 25 years ago after being found with other abandoned children at a house in Arrowhead. Jeff and Skye locate the house and question the owner, Annabelle. Sakelik tracks Jeff and Skye to the house and they barely escape with their lives. Stuart continues to befriend Roger. Meanwhile, on the television show, Kelly finds a lock of Meadow’s hair in the trunk of Billy’s car.

Stuart tasks Nate with deciphering the copy of Kellian's manuscript but Cameron remains skeptical that Nate can uncover the answers about the Moon Hill parents. Nate reveals to Stuart that 32 followers disappeared from Moon Hill, and gives Stuart a phone number that he found repeated in the manuscript's code. Jeff and Skye remain in hiding from the True Believers, now that Stuart knows that they know his true identity. Meanwhile, on the inside show, Billy has tracked Henry, the killer of Kelly and Meadow's parents, and holds him captive. Kelly begins to unravel emotionally as she wrestles with unresolved feeling about her parents' murders.