Ben 10: Omniverse Episode 51 And Then There Were None Episode Title:And Then There Were None.Episode Description:Eon and Vilgax team up and bring together a team of evil-parallel Bens, (consisting of Albedo, the black haired "Bad Ben", the Australian-accented warlord Mad-Ben, the deformed, zombie-like Benzarro and the apathetic, gothic Nega-Ben) who go after a Ben who never got an Omnitrix (No Watch Ben). Professor Paradox helps Ben Prime (the main Ben) to find a team of good Bens (consisting of Ben 23, 10-year-old "Gwen 10" from a timeline where she got the Omnitrix and Ben Prime's future self, Ben 10,000) to fight back and save No Watch Ben. However, things take a turn for the worse when Vilgax uses a Chronosapien time bomb to wipe out Ben in every other dimension apart from No Watch Ben. Before disappearing, Ben Prime gives his Omnitrix to No Watch Ben.