The movie presents a story of the planet Druidia. Her father hires Lonestar, a Han Solo like character that agrees to act as a gun for hire to free the princess. Along with his sidekick Barf, a half man, half dog creature they travel through the Galaxy in an attempt to rescue the princess from a large spaceship operated by the Spaceball empire. They literally jam the radar with jelly to knock out the ship's radar. Within the ship Lonestar and the dreaded Dark Helmet have a lightsaber battle.
Beams of light emerge from their ring fingers and they go at it with the power of the swartz.
During the fight the two even manage to kill a few camera men. After Lonestar escapes with the princess, a desert planet akin to Tattoine from Star Wars is the next destination to hide out from the empire. There the wise Yogart advises Lonestar about merchandising rights and other such things. While all of this is going on space mobster Pizza the Hutt continues to search for Lonestar who he has put a bounty on. Only near the movie's end does Pizza the Hutt finally die by eating himself.