Negative Ventro is Ventro from an alternate universe where the heroes and villains were both evil and he was part of the resistance. He said a villain named "Adrian Pintwood" was the leader of the bad guys. When he was transported to the Us universe, Ventro did not believe him. Then, a flashback came. Negative Ventro was right about his ex-nemesis was evil by Ventro. After Jenny’s boss was destroyed. Negative Ventro turned everything to normal.