Darth Vader's secret apprentice, codenamed Starkiller, is trained in the Dark Side to defeat the enemies of the Empire, but must find his own path when his master betrays him.Darth Vader's secret apprentice, codenamed Starkiller, is trained in the Dark Side to defeat the enemies of the Empire, but must find his own path when his master betrays him.Darth Vader's secret apprentice, codenamed Starkiller, is trained in the Dark Side to defeat the enemies of the Empire, but must find his own path when his master betrays him.