IN THE FIRST OF A SPECIAL TWO-PART ARC SET IN A DARK ALTERNATE UNIVERSE, AN EVIL VERSION OF THE ENTERPRISE CREW MAKES AN ASTONISHING DISCOVERY THAT TIES DIRECTLY TO THE ORIGINAL "STAR TREK" SERIES, ON "STAR TREK: ENTERPRISE," FRIDAY, APRIL 22

Four Original Episodes Until the May 13 Series Finale

"In a Mirror, Darkly" -- In the first of a special two-part arc set in a dark alternate universe, an amoral, imperialistic version of the Enterprise crew, led by a new captain with Archer as his treacherous first officer, makes an astonishing discovery (that ties directly to the original "Star Trek" series) during a mission into enemy alien territory, on STAR TREK: ENTERPRISE, Friday, April 22 (8:00-9:00 PM, ET/PT) on UPN. James Conway directed the episode written by Mike Sussman.

Meanwhile, in the alternate universe, a power-hungry Archer schemes against Captain Forrest, his lover Hoshi, and loyal slave T'Pol, so he can lay full claim to the discovery. Later, Phlox happily tortures a captured alien for information Archer needs.

Captain Jonathan Archer: Scott Bakula
Chief Engineer Charles Tucker III: Connor Trinneer
Vulcan Sub Commander T'Pol: Jolene Blalock
Lt. Malcolm Reed: Dominic Keating
Ensign Travis Mayweather: Anthony Montgomery
Ensign Hoshi Sato: Linda Park
Dr. Phlox: John Billingsley
Forrest: Vaughn Armstrong
Grizzled Human: Franc Ross

RATING: To Be Announced