In an alternate universe of Star Wars, Chancellor Palpatine was assassinated a year after the Clone Wars began, and history as we see it on the screen has changed drastically. 25 years after the ascension of Demious Pravus to the throne of the Galaxy, an ex-Jedi named Carter, hiding from Pravus' Purger Troops, hears the call again in the form of two renegades who harbor the secret than could kickstart the slow fall of the Sith Imperium...
Note: The Empire as we see it in the Star Wars Original Trilogy does not exist; however, aspects of it have been recycled in this story.
Another Note: In this universe, Order 66 never happened, and neither did Anakin's fall to the dark side. However, Anakin and Padme still had twins, Luke and Leia. Obi-Wan is still alive in this timeline, as well, having gone into exile with Yoda on Dagobah. Han Solo was drafted into the Imperial Army as a Purger Trooper. Alderaan still exists.