Upon the Falcon's arrival at the location of Alderaan, the group discover that the planet has been destroyed by order of the Death Star's commanding officer, Grand Moff Tarkin, as a show of power. The Falcon is captured by the Death Star's tractor beam and brought into its hangar bay. While Obi-Wan goes to disable the tractor beam, Luke discovers that Leia is imprisoned aboard, and with the help of Han and Chewbacca, rescues her. After several escapes, the group makes its way back to the Falcon. Obi-Wan disables the tractor beam, and on the way back to the Falcon, he engages in a lightsaber duel with Vader. Once he is sure the others can escape, Obi-Wan allows himself to be killed. The Falcon escapes the Death Star, unknowingly carrying a tracking beacon, which the Empire follows to the Rebels' hidden base on Yavin IV.