In early 2001, Comer was assigned by Deputy Director Alvin Kersh to infiltrate a UFO cult in North Dakota, following threats by the cult against Agent Fox Mulder. Comer spent six months within the cult, which was led by Zeke Josepho. During this time, Comer received information that Mulder had been killed and began to believe in Josepho's prophecy that Dana Scully's baby son, William, would lead the Alien invasion of Earth, once Mulder was dead. (TXF: "Provenance", "Providence")