After the Rebel Alliance managed to obtain the schematics of the a powerful space station called. . . the Death Star, the Sith Lord Darth Vader was commanded by his master, Darth Sidious, to retrieve the stolen information. Vader received word of a possible Rebel courier en route to Kalakar Six, a volcanic moon once controlled by the Sith. Upon arrival, however, Vader found that there was no Rebel presence on the moon, as his stormtrooper escorts were quickly killed by a mysterious assassin wielding a red lightsaber.