Ben 10: Crossover Nexus (2018)

Ben 10: Crossover Nexus (2018) is a TV special aired on Cartoon Network on October 8, 2018.

Plot
When K.O. finds himself trapped in a mysterious place, he encounters other Cartoon Network Heroes and they band together to escape.

Also See

 * Ben 10
 * Ben 10: Alien Force
 * Ben 10: Ultimate Alien
 * Ben 10: Omniverse
 * Ben 10 (2016 TV Series)