A civil war rages in a galaxy far, far away between the oppressive Galactic Empire and the rebel alliance fighting for freedom. When Princess Leia, one of the rebellion's leaders, obtains the plans to the Death Star, the Empire's planet-destroying space station, she is pursued by the sinister agent of the Empire, Darth Vader. Before being captured, Leia sends the plans in a droid named R2-D2, who, along with his companion C-3PO, escapes to the desert planet of Tatooine. There, the droids are purchased by a young farmer named Luke Skywalker. When R2-D2 plays a distress message from Leia, asking for help from the reclusive Jedi Knight Obi-Wan Kenobi, Luke finds himself drawn into a journey he never expected.

Luke and the droids seek out Obi-Wan, who explains the ways of the Force, an energy field that gives a Jedi their power. Realizing the importance of delivering the Death Star plans to the rebels, they hire a cynical smuggler, Han Solo, and his Wookiee co-pilot, Chewbacca, to transport them in their spaceship, the Millennium Falcon. On their way to the rebel base, they face multiple obstacles that test their courage and dedication to the cause. The stakes are high as the fate of the galaxy hangs in the balance, and they must work together to outmaneuver the Empire's grasp.