Star Trek: Enterprise: Season 4, Episode 18

4 - 18: In a Mirror, Darkly (1)

An amoral, imperialistic version of the Enterprise crew exists in a dark alternate universe. Commander Archer of the Terran Empire Enterprise mutinies against Captain Forrest to investigate an anomaly in Tholian space and capture a future Earth ship. The Star Trek episodes "Mirror, Mirror" and "The Tholian Web" inspire this mirror-universe tale.