Two robots sent to find help by Princess Leia contact Luke Skywalker and Obi-Wan Kenobi, and provide the Rebel forces with important information about the Empire's death star
The Rebel Alliance sets up a base on the icy planet Hoth, where Luke battles a snow monster, has an encounter with Obi Wan Kenobe, and ends up fighting Imperial forces who discover the base
Luke Skywalker and Ben Kenobi go to the dangerous city of Mos Eisley in search of a pilot who will take them to the planet Alderaan to deliver stolen Imperial plans for a superweapon to the Rebel Alliance.