After escaping from Imperial forces in the Hoth system - Han Solo and Princess Leia - Chewbacca and C-3PO - landed the damaged Millenium Falcon on Bespin's Cloud City for repairs. The four put their trust in the city's administrator - Lando Calrissian - unaware of the dangers awaiting them. A dashing ex-gambler and long time acquaintance of Solo's - Calrissian had grudgingly made an agreement with Darth Vader to betray Solo and his friends. In return - the band would be set free once their capture had lured Luke Skywalker into Vader's grasp. The Dark Lord had no intention of keeping any promises: on his order a carbonite freezing chamber was modified for use on humans - especially Luke Skywalker - to render him helpless for safe delivery to the Emperor. To test the chamber - Solo was frozen and then turned over to the Bounty Hunter Boba Fett. for delivery to the crime lord Jabba the Hutt. He became the favorite decoration in Jabba's Palace on Tatooine - until a daring rescue attempt led by Luke Skywalker and Princess Leia freed Han and returned him to the enduring cause of the Rebel Alliance.