Ben 10 Omniverse: Season 6, Episode 8

6 - 8: Universe vs. Tennyson

Ben gets dragged into intergalactic court by the other Celestialsapiens for recreating the whole universe and all of existence previously in "So Long and Thanks for All the Smoothies!" In the end, the court rules in Ben's favor that Alien X was not controlled by Ben but by Belicius and Serena.