Ben 10: Omniverse

Ben 10: Omniverse is the fourth iteration of the Ben 10 franchise, and it is the sequel of Ben 10: Ultimate Alien.

Ben was all set to be a solo hero with his new Omnitrix after Gwen and Kevin left for college, but Grandpa Max teamed him up with a rookie, by-the-book partner. Together they explore a secret alien city, known as Undertown beneath the city of Bellwood. Meanwhile, a mysterious hunter, known as Khyber, sets his sights on Ben! With all new alien heroes to choose from, the fun is just getting started. It's a whole new Omniverse!

Malefactor (Season 2, Episode 5)
In a flashback, 11 year old Ben accompanies Gwen and Grandpa Max to Mt. Rushmore for a surprise. There, Max gives them special glasses and shows them an injured Psycholeopterran, saved by Plumbers from smugglers. After taking off his glasses to taunt Gwen, Ben accidentally gets hypnotized by the predator - luckily, the containment field prevents him from being devoured.

Catfight (Season 5, Episode 49)
As Ben and Rook go on a double date with Ester (the Kraaho) and Rayona (Rook's girlfriend back home), they encounter Nyancy Chan, who places Ben (as Rath) under her trance and uses him in a crime spree. Meanwhile Princesses Looma and Attea are at odds about who will get to legally marry Ben's alien forms: Four Arms and Bullfrag.