Introduces the underground alien city, Undertown , and the mysterious hunter Khyber , who uses a Nemetrix to counter Ben’s aliens.

Check out these deep dives and recaps to catch up on the entire Omniverse story:

Often features rotating episodes available for free or through a cable provider login. Series Structure & Story Arcs

Ben 10: Omniverse — The Complete Guide to Every Episode If you grew up watching Cartoon Network, "It's Hero Time" isn't just a catchphrase—it's a lifestyle. Ben 10: Omniverse served as the fourth series in the Classic Continuity , picking up shortly after the events of Ultimate Alien