IN THE CONCLUSION OF A TWO-PART ARC, ARCHER AND THE CREW MUST STOP A RADICAL ISOLATIONIST LEADER THREATENING TO DESTROY STARFLEET COMMAND UNLESS ALL ALIENS LEAVE EARTH, ON "STAR TREK: ENTERPRISE," FRIDAY, MAY 13

Episode Airs as Part of the Series' Special Two-Hour Finale

Peter Weller ("RoboCop") Guest Stars as Paxton

"Terra Prime" -- In the conclusion of a two-part arc revealing the first steps in the foundation of the Federation, Archer, Reed and Travis combine resources to stop Paxton (guest star Peter Weller), a well-armed, radical human isolationist leader from Mars, from destroying Starfleet Command unless all aliens leave Earth immediately, on STAR TREK: ENTERPRISE, Friday, May 13 (8:00-9:00 PM, ET/PT) on UPN. Marvin Rush directed the episode from a story by Judith & Garfield Reeves-Stevens and Andre Bromanis and a teleplay written by Judith & Garfield Reeves-Stevens and Manny Coto.

Meanwhile, Paxton's hostages T'Pol and Trip are confronted with a baby girl created from their combined DNA, leaving them to contemplate the possibilities.

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
Paxton: Peter Weller
Greaves: Peter Mensah
Soval: Gary Graham
Gannett Brooks: Johanna Watts
Nathan Samuels: Harry Groener
Harris: Eric Pierpoint
Kelby: Derek Magyar
Josiah: Adam Clark
Ensign Masaro: Josh Holt
Tactical Officer: Amy Rohren
Thoris: Joel Swetow

RATING: To Be Announced