After Luke Skywalker (Mark Hamill), Princess Leia (Carrie Fisher), Chewbacca (Peter Mayhew) and the two droids, C-3PO (Anthony Daniels) and R2-D2 (Kenny Baker), rescue Han Solo (Harrison Ford) from the clutches of Jabba the Hutt back on Tatooine, the group joins up with the Rebel forces who are preparing a major assault on the Empire. The plan is to have Luke, Leia, Han, Chewbacca, and the droids slip onto planet Endor where the Empire keeps their power generator used to create a force field around the Death Star. Once the generator is destroyed, the Rebellion will make an all out attack on the Death Star in the hopes of destroying it and Emperor Palpatine (Ian McDiarmid), hidden inside.

But while on Endor, Luke is troubled by the knowledge that to become a Jedi, he must destroy Darth Vader (David Prowse/James Earl Jones), who has discovered Luke's location using the Force.