Luke Skywalker is thrust into the Rebel Alliance's struggle against the evil Empire when he meets Obi-Wan Kenobi. As Obi-Wan begins Luke's Jedi training, they rescue Rebel leader Princess Leia from an Imperial space station; Obi-Wan faces his former apprentice, Darth Vader; and Luke proves that the Force is strong in him when the Rebels attack the Empire's Death Star.