Buzz Lightyear of Star Command - Season 1 - Eps 30: The Lightyear Factor
Zurg stumbles upon an alternate dimension where Buzz is evil (...possibly more evil than Zurg, himself...) and has taken over the universe. Zurg has Buzz, the evil one, capture Buzz, the good one, and trap him in the other dimension while they capture Star Command. Buzz's teammates (the good Buzz's, that is) venture into Zurg's Dreadnaught, thinking Buzz has gone insane, but, alas, are captured. Meanwhile, Buzz (the good one) is chased around by the alternate Mira and Booster (the bad ones). He gets a reprieve from the alternate Nebula (who isn't all that bad), who knows that Evil Buzz is working with Zurg. They team up in order to stop the bad guys. Team Lightyear is rescued, Star Command is saved, the Dreadnaught blows up, Zurg and his minions escape, and Evil Buzz is left floating out in space, ready for his revenge in ""Sunquake""...
About Buzz Lightyear of Star Command

Title: Buzz Lightyear of Star Command
First Air Date: 2000-10-02
Last Air Date: 2001-01-13
Status: Ended
Rating: 6.5/10 (from 65 votes)
Language: EN
Seasons: 1
Total Episodes: 62
Network: UPN
Genres: Kids, Animation, Sci-Fi & Fantasy, Family, Comedy
Production Companies: Pixar, Disney Television Animation
Synopsis
Buzz Lightyear of Star Command is an American animated science fiction/adventure/comedy series produced by Walt Disney Television Animation. The series originally aired on UPN and ABC from October 2000 to January 2001 as part of Disney's One Saturday Morning programming block. It follows the adventures of space ranger Buzz Lightyear, who first appeared in the film Toy Story as an action figure and one of the film's protagonists.
Cast

Patrick Warburton
Buzz Lightyear (voice)

Nicole Sullivan
Princess Mira Nova (voice)

Stephen Furst
Booster (voice)