Episode X of Star Wars: Dawn of Defiance
From the adventure introduction:
Jaws of the Sarlacc is the tenth and final adventure in the Dawn of Defiance campaign, which should take heroes from 1st level through 20th level in a continuous storyline designed to give players and Gamemasters a complete Star Wars Roleplaying Game: Saga Edition experience. This adventure sends the heroes to the Deep Core world of Byss, where the Sarlacc Project-the construction of a massive Super Star Destroyer prototype-is underway. The heroes should advance to 20th level by the end of the adventure. Over the course of this adventure, the heroes will have a chance to finally confront and defeat the traitorous Admiral Varth and the vile dark Inquisitor, Valin Draco. Jaws of the Sarlacc is the finale of the story arc that makes up the Dawn of Defiance campaign. After completing the adventure, the heroes will have saved the galaxy from an Imperial superweapon and paved the way for other rebellious elements to strike back at the Galactic Empire.