Editors please note that this episode replaces the episode that was previously announced for this date and time.

ARCHER LEADS HIS NEW XINDI ALLIES AFTER THE SUPERWEAPON AS T'POL AND ENTERPRISE HATCH A PLAN TO DISABLE THE SPHERE NETWORK, ON A REBROADCAST OF "STAR TREK: ENTERPRISE," FRIDAY, SEPT. 10

"Countdown" -- Archer and his new Xindi allies must launch a full-scale assault on the superweapon speeding towards Earth and its thieving escorts, the rebellious Reptilian and Insectoid Xindi, before a kidnapped and brainwashed Hoshi can decrypt the weapon's encoded arming mechanism and unleash its devastating power, on a rebroadcast of STAR TREK: ENTERPRISE, Friday, Sept. 10 (8:00-9:00 PM, ET/PT) on UPN. Robert Duncan McNeill directed the episode from a script by Andre Bormanis and Chris Black. (Originally broadcast 5/19/04)

Meanwhile, T'Pol and Trip hatch a plan to destroy one of the massive metallic spheres responsible for all the space anomalies in the region, bringing the Sphere Builders, aliens responsible for originally pitting the Xindi against Earth, directly into the fray.

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
Xindi Sloth: Rick Worthy
Xindi Humanoid: Tucker Smallwood
Reptilian Commander: Scott MacDonald
Sphere Builder Woman: Josette Di Carlo
Sphere Builder Primary: Ruth Williamson
Sphere Builder Presage: Mary Mara
Reptilian Lieutenant: Andrew Borba
Reptilian Soldier: Bruce Thomas
Reptilian Technician: Paul Dean
Major Hayes: Steven Culp

RATING: TVPG-V