In the future, Ben 10,000's son Ken turns ten (a lad just as willful and self-centered as his father at that age). As a present, he gets his own Omnitrix but chafes at only getting ten alien heroes from which to choose. He accepts it nonetheless. While joyriding on his hoverboard, he meets and befriends another youth his age, unaware he's Devlin, son of Ben's archenemy Kevin. Devlin's plan: worm his way into Ken's trust and free his dad from the Null Void. Ken, unfortunately, is just the right kind of arrogant dupe to fall perfectly into this plan.
Did You Know?
The container with the Omnitrix that Ben gives to his son, is just like the container that crashed to earth with Ben's Omnitrix in the first episode of the series. See more
If Kevin never escaped the Null Void (and he speaks as if he's been in there a long, long time), his DNA could not have gotten out to sire Devlin. See more
Some scum just can't take a hint.