In 4 ABY, Lord Starkiller dispatched the dark clone of Anakin Skywalker to the Forest Moon of Endor to put an end to the Rebellion once and for all. As the Rebel Alliance mounted a desperate attempt to destroy the Empire's second Death Star, the apprentice landed the Rogue Shadow II on Endor while the Imperial shield generator bunker was under attack by the Rebels and their Ewok allies. In accordance with his Master's instruction to leave no survivors, the clone killed all who stood in his path, until finally encountering Han Solo and Chewbacca, both of whom died in combat against Starkiller's disciple.
Inside the bunker, the dark clone fought his way through waves of resistance, killing Rebels and Imperials alike. He finally encountered Leia Organa, who revealed that she had been trained as a Jedi after Luke Skywalker had been killed by Starkiller on the planet Hoth. Though the apprentice remarked that Leia had considerable potential, she proved to be no where near his equal in combat skills and raw power in the Force. In the end, Leia was killed by Starkiller's merciless apprentice, thus marking the death of the last offspring of the real Anakin Skywalker, and the galaxy's final hope.
With the bunker secured and the shield generator intact, Emperor Palpatine declared the end of the Alliance and a new age for the Galactic Empire. While Starkiller stood at his side, the Emperor also revealed that he knew all along about the existence of the original Skywalker's perfect clone, which he referred to as a "pathetic" asset in Starkiller's pitiful schemes. With his treachery exposed, Starkiller moved to strike down his Master once and for all. But Palpatine easily defeated Starkiller by utilizing Force lightning. With Starkiller on his knees in defeat, the Emperor ordered his Imperial forces to kill the clone. On Endor, the dark clone sat in meditation near Leia's dead body. As several Star Destroyers converged on his location, the clone opened his eyes and prepared to deal with the latest threat to himself and his Master's plans.