Menacing, armor-clad Darth Vader seeks out and exterminates Rebel Alliance members wherever he finds them. When these enemies are members of the Imperial Senate, such as Leia Organa, he must tread more lightly. Still, Vader's methods must include isolation and advanced mind probing. A Sith, he calls upon the Force in a fateful Lightsaber duel between himself and his former Jedi master, Obi-Wan Kenobi. This contest is witnessed by Luke Skywalker, Vader's eventual "last man" target in the Death Star trench raid.