1x21 — Watch X-files

: Tooms eventually kills his own psychologist, Dr. Monte, to obtain his final liver. Mulder and Scully track him to his original nesting site, which has since been covered by a modern shopping mall. In a gruesome finale, Tooms is crushed by the mall’s escalator mechanism while attempting to attack Mulder. Why It Matters (Series Significance)

, titled " Tooms ," is a landmark entry in the series that serves as the first-ever sequel to a "Monster of the Week" episode. It originally aired on April 22, 1994, and concludes the story of the liver-eating mutant introduced in the earlier episode "Squeeze". Plot Deep-Dive Watch X-Files 1x21

: This episode marks the first appearance of Assistant Director Walter Skinner , who would become one of the series' most essential characters. : Tooms eventually kills his own psychologist, Dr

Break down the of other major series regulars In a gruesome finale, Tooms is crushed by

: Eugene Victor Tooms, a genetic mutant who can stretch his body and hibernates for 30 years after consuming five human livers, is being evaluated for release from a psychiatric hospital. Despite Mulder’s frantic warnings and evidence of Tooms' long-term predatory history, the court deems him rehabilitated and releases him into the care of a foster family.