Eon was searching for the Hands with the help of warriors from throughout time that he transformed into abnormal creatures that would act as his servants. Finding out that he was too old and weak to activate the Hands, he set about capturing Ben Tennyson, with the intention of using his Omnitrix to turn his counterpart into a younger clone of himself. To ensure the transformation would be complete, Eon deactivated a failsafe so that his DNA would completely overtake his personality.

*Due to his powers over matter, Eon's personality persisted in the sampled DNA. *

Upon succeeding in this goal, the elder Eon seemingly wiped himself from existence to prevent two versions of himself from existing in the same world.

As the younger Eon, Ben activated the Hands of Armageddon. However, his human personality retook control when Gwen managed to reach her cousin inside the younger Eon, prompting him to revert back to human. Meanwhile, Max deactivated the Hands, thwarting the elder Eon's invasion.

Returning to existence, the real Eon tried to exact his revenge. However, Ben as Wildmutt managed to send Eon crashing into the Hands of Armageddon, destroying it in a huge explosion of bright, glowing purple energy.