Pieces of the past (young Ben) and the future (Ben 10,000) are bleeding into the present.
Ben realizes the ISO-XEX protocols weren’t a glitch, but a security measure hidden by Azmuth. By syncing his DNA with the Chronosapien energy, he stabilizes the timeline. He performs a "Hard Reset" on the Omnitrix, sending the echoes of other eras back to their rightful places and locking Eon outside of time once again. Ben 10: Omniverse ISO & XEX - Xbox 360 [Region ...
If you'd like to expand this into a or a fan-fic , let me know: Which aliens should Ben get stuck as? Pieces of the past (young Ben) and the