X=Ben+2

S1 E13: The Incursians blame Earth for the kidnapping of Emperor Milleus' daughter, At the Emperor's right hand man, recruits Kevin to help them recover Attea before the Emperor uses the Conquest Ray to destroy the Earth. Ben transforms into ALIEN X but soon discovers that his powers are too great to control. Ben must gain control over Alien X before Emperor Milleus can use the Conquest Ray to blow up Earth.