Star wars, Darth Vader. Dark droids

Killer droids have taken over Darth Vader's flagship! Will the lessons of Jedi Masters Qui-Gon and Obi-Wan save the man who was once Anakin Skywalker from the corruption of the Scourge - or make him a tool for its galactic conquest? To survive a war on two fronts - against a horde of Scourged and the forces of the Empire itself - Vader must reclaim his control over the Force by exploring his deepest hatred. But who does the Dark Lord of the Sith...