Blue Harvest is episode 1 of family guy season 06. It was originally aired on September 23, 2007.
When the power goes out in the Griffin home, Peter decides to educate his family and pass along the greatest story ever told: the story of Star Wars! After Princess Leia (Lois) comes under siege by Darth Vader (Stewie) and his evil Storm Troopers, C-3PO (Quagmire) and R2-D2 (Cleveland) escape to find the only person who can help the Rebel Alliance. On their quest thorough the desert planet of Tatooine, C-3PO and R-2D2 find extra help in Obi-Wan Kenobi (Herbert), Luke Skywalker (Chris), Han Solo (Peter) and Chewbacca (Brian) and head back to battle the Death Star in an epic intergalactic fight to the death.