It was originally hired by Obi-Wan Kenobi to take Luke Skywalker, R2-D2 and C-3PO to Alderaan. However, they realised that Alderaan had been destroyed and that the Death Star was completed and had been unleashed on the Galaxy. The Death Star captured the Falcon and Han Solo, Chewbacca and Luke Skywalker had to break in to deactivate the tractor beam. However, they were sidetracked when they realsied that they also had to save Princess Leia from the Imperials. Obi-Wan Kenobi instead deactivated the tractor beam but was then killed by Darth Vader in their final duel.
The Falcon fled the Death Star and returned to the Rebel Alliance, and the plans for the Death Star were recovered from R2-D2. The rebels then led the attack on the Death Star but Han Solo instead decided to take his reward and flee. At the climax of the battle, Luke was about to destroy the Death Star when he was suddenly attacked by Darth Vader in his TIE Fighter. Han turned back and saved Luke by attacking Vader and allowing Luke to destroy the Death Star. The heroes then returned to the rebel base in triumph, and the Falcon was promoted to a flagship of the Rebel Fleet.
Later on, the Rebels had relocated to Hoth, and the Falcon was used to aid in the evacuation of the base when it was discovered by the Empire. Despite suffering from technical faults, the Falcon was able to evade the Imperial ships and fly to Bespin, where it remained whilst the Rebels uncovered an Imperial ambush there. After Han Solo was frozen in Carbonite by Vader and Luke Skywalker had his hand cut off, the Falcon was used by Leia and Lando Calrissian to save Luke and escape.
The Falcon was once again used in the attack on the Second Death Star, flown by Lando whilst Han Solo and the Rebels destroyed the shield generator on Endor and Luke duelled Darth Vader. the Falcon suffered damage to its antenna and took several hits but was able to aid Wedge Antilles in destroying the main core, and it escaped with Wedge and flew the heroes down to Endor to aid in the celebrations.