The plot targets the Rebel Alliance, led by Princess Leia (Fisher), as well as its attempt to destroy the Galactic Empire's space station, the Death Star. This conflict disrupts the isolated life of farmhand Luke Skywalker (Hamill) who inadvertently acquires a couple robots (generally known as droids in-universe) that possess stolen architectural plans with the Death Star. When the Empire begins a destructive search for that missing droids, Skywalker agrees to accompany Jedi Master Obi-Wan Kenobi (Guinness) on the mission to return the Death Star intends to the Rebel Alliance and save the galaxy on the tyranny from the Galactic Empire.
The film's massive success triggered the production of two sequels: The Empire Strikes Back (1980) and Return on the Jedi (1983), which became critically and commercially successful. A prequel trilogy was later released between 1999 and 2005; the 3 films were again commercially successful, but failed to match how much critical and fanatical acclaim in the original trilogy. Lucas has re-released Star Wars several times, incorporating many changes including modified computer-generated effects, altered dialogue, re-edited shots, remixed soundtracks, and added scenes. In early 2014, a brand new sequel trilogy began production having a majority on the cast members through the original trilogy returning for your seventh installment, The Force Awakens, released on December 18, 2015.