Phineas and Ferb : Star Wars Phineas and Ferb : Star Wars is a one - hour special episode of the Disney Animation television series that aired in summer 2014 on Disney Channel and Disney XD . The " Star Wars " - themed crossover was first announced at the annual San Diego Comic - Con International on July 19 , 2013 . Plot summary . The episode ' s story begins a long time ago , in a galaxy far , far away - - in summer . Step - brothers Phineas Flynn and Ferb Fletcher are living happily on Tatooine , just one moisture farm over from Luke Skywalker . They love simply hanging out , creating new adventures under the twin suns , and creating new inventions , however , they find themselves thrust into a global rebellion when the plans for blowing up the Death Star accidentally fall into their hands . Now that fate has suddenly pulled them into the fight for freedom , they must go in search of a pilot who can take them to the Rebels so they can hand over the plans . Complicating matters , Candace - - Phineas ' s long lost sister - - has a Stormtrooper - like intent on " busting rebels " who chase Phineas and Ferb across the galaxy in hopes of retrieving the Death Star plans . Meanwhile , back on the Death Star , Dr . Darthenshmirtz , a low level Darth , has created a Force - powered " Sith - inator " that he plans to use against the Rebel Alliance . Agent P , working undercover for the Rebellion , is dispatched to stop him , but quickly gets trapped in carbonite . Then , things take a startling turn when Ferb is accidentally hit by the full blast of Dr . Darthenshmirtz ' s " inator " and becomes . . . an evil Sith . After Ferb was turn into an evil Sith , Candace was assigned to guard a communication post , then Phineas and Isabella walk out of the elevator , they saw Candace and Isabella shoot the communication post and they ran . Meanwhile , Darthenshmirtz is collecting some Darth Vader ' s trash , to function the Sith - Inator . Meanwhile , Perry ' s carbonite trap is heating up and he set free . After Darthenshmirtz collecting some trash , the doors fixed , and he finds Ferb . Norm 3 - PO ( parody version of C - 3PO ) walk to the box and Perry fires a blaster and Norm is shut down . And begins to fight Darthenshmirtz . Candace continues to chase Isabella and Phineas but slips on some disposal liquid left from the garbage chute and hangs from a ledge . Phineas decides to save her , much to the annoyance of Isabella . Phineas catches Candace , but she is confused as to why , since she always believed that the Rebel Alliance were the enemies . Buford interrupts them with a missed shot and accidentally shoots a Stormtrooper , sending the man falling right through the bottom of the Death Star . Buford apologizes , but the man tells him not to worry about it , as he plans to slide down until he catches on to a radio antenna , Too late , it dawns on him he is thinking of someplace else , and falls into space . Phineas and Isabella catch up with and see R2 - D2 and the others leave on the " Falcon " . Isabella tells they should leave immediately or they will lose the " Falcon " , but Phineas won ' t leave without Ferb . Phineas decides to trust Isabella to deliver the disc to R2 - D2 despite Isabella warning him that she ' s not coming back . As Phineas explores the station in search of Ferb , he sees a room dousing with a red light . The red light is emitting from a modified Sith - inator . Phineas discovers it was built by Ferb , who is now wearing a Sith uniform and has Darth Maul - esque face makeup on . Merchandise . " Walt Disney Records " released a soundtrack album containing five songs ; and a radio drama version of the episode in German language . Games . This special episode inspired two online games , " Agent P : Rebel Spy " and " Phineas and Ferb Star Wars - Droid Masters " . Both playable for free on Disney web sites . Behind the scenes . , one of the show ' s creators , first hinted at the crossover during an interview with TVGuide . com about the show ' s upcoming crossover with Marvel Comics , as he indicated that he had the " Star Wars " - themed episode in mind since Lucasfilm Ltd . ' s acquisition by Disney in 2012 . Robert Hughes confirmed that there would be at least five songs in the special . Adam Savage and Jamie Hyneman from the television show " " ( and ex - ILM employees ) have voice cameos in this special episode .