Clark discovers red kryptonite's evil power over him when the school unknowingly uses it in the class rings.
Gary learns something very strange about Amy, which suggests a larger, more terrifying conspiracy.
Madison's instincts gain strength as she begins to make sense of Marcus' memories; Jack gets a terrifying confession out of Gary; Richard comes face-to-face with Marcus.
Rose confronts Jack about Amy's recent strange behavior; Richard discovers a secret that could destroy Rose's ascent.
Mulder and Scully are sent to investigate the murder of a city official, which it seems no human could have committed.