2312

2312 is the twenty-fifth episode of Ben 10: The Omniwars and the fifth episode in the second season.

Plot
Ben 23 must protect his dimension from Billy Billions and his Dimension 12 army.

Characters

 * Ben 23 (main character of this episode)
 * Ben Tennyson

Villains

 * Billy Billions (first re-appearance)
 * Dimension 12 Robots

Aliens Used
By Ben 23; By Ben;
 * Electricyeti (first re-appearance)
 * Mr. Mucky (first re-appearance)
 * Giant-Manster (first appearance)
 * Humungousaur
 * Upgrade
 * AmpFibian