The Rebels learn that the Empire has been constructing a second Death Star under the direct supervision of the Emperor himself. As the station is protected by an energy shield, Han leads a strike team to destroy the shield generator on the forest moon of Endor; doing so would allow a squadron of starfighters to destroy the Death Star. The strike team, accompanied by Luke and Leia, travels to Endor in a stolen Imperial shuttle. On Endor, Luke and his companions encounter a tribe of Ewoks and, after an initial conflict, gain their trust. Later, Luke tells Leia that she is his sister, Vader is their father, and he must go and confront him. Luke surrenders to Imperial troops and is taken to Vader. Luke tries to convince Vader to turn from the dark side of the Force, but fails.