“Let x = 9” (season 1, episode 6)

The team investigates Grace Ling, a woman who claims to be able to speak to God. To their surprise, Grace appears to be 100% legit. Turns out Vatican leadership is particularly concerned about Grace’s accuracy because her prophecies echo those found in a centuries-old codex—one that predicts the downfall of the Catholic Church. Or is it… the end of the world? Unfortunately, Grace is scooped up by ICE and deported to China before the team can figure out the truth.
Elsewhere in the episode, Kristen invites Sheryl and her new boyfriend over for dinner—and is horrified to realize that the vile, manipulative Leland has somehow sparked her mother’s romantic interest, and even worse, is in her home ingratiating himself to her daughters. It’s at this moment that the relationship between Kristen and Sheryl begins to fracture, a situation that becomes more tumultuous as Evil progresses.