chunk: Luke arrives at Cloud City and falls into Vader's trap. The two engage in a lightsaber duel that leads them over the city's central air shaft where, as his mentors warned, Luke proves to be no match for Vader who severs Luke's right hand, causing him to lose his weapon. After Luke refuses to join Vader against the Emperor, Vader reveals that he is Luke's father. Horrified, Luke falls through the air shaft. He is ejected beneath the floating city and makes a desperate telepathic plea to Leia, who senses it and persuades Lando to return for him in the Falcon. R2-D2 repairs the Falcon's hyperdrive, allowing them to escape the Empire.
  Later, aboard a Rebel medical frigate, Luke's amputated hand is replaced with a robotic prosthetic. Lando and Chewbacca set off for Tatooine in the Falcon in order to save Han. As the Falcon departs, Luke, Leia, R2-D2, and C-3PO look on and await word from Lando.