And Then There Were None

And Then There Were None is the ninth episode of the fifth season of Ben 10: Omniverse, and the forty-ninth episode overall.
==Synopsis==
Vilgax and Eon team up to wipe out every Ben in every dimension!
==Plot==
The episode starts with Ben walking down the street. Suddenly, he hears a woman screaming for help whose cat got stuck in a tree. Ben helps the cat and starts to think about what it is like to be a superhero. He then realizes that he is late for his soccer game and looks at his broken watch, revealing that this is an alternate timeline; one where Ben never received the Omnitrix. At the game, Ben is the goalkeeper, but his team wins because a player hits the goalpost in the last minute. Following the match, Ben gets robbed by Kevin who takes his broken watch. He then meets Max who comes to pick him up in the Rustbucket.
Max asks Ben why he is so gloomy, and he replies that he is bored of the same old routine in the same old town and that he wants something exciting to happen. Max tells Ben that he does not need to find it, rather it will find him. When they make it home, Ben is surprised to see Gwen on his living room couch. They have a short, awkward talk until JT calls Ben, asking him to come to Mr. Smoothy.
Shortly after leaving Mr. Smoothy, Ben realizes he's being followed and walks into a dark alley to throw his pursuer off. His pursuer reveals himself to be Bad Ben, who looks just like him only with black hair. While Ben is in disbelief, Bad Ben declares that Ben must be destroyed and transforms into Ghostfreak and starts to chase Ben. Bad Ben is soon joined by Albedo and Benzarro, who respectively attack him after Albedo transforms into Humungousaur and transforms into Ultimate Humungousaur while Benzarro transforms into Frankenstrike. Cornered, Ben is saved just in time by Ben Prime who transforms into Spidermonkey to rope him away and promises to take him to someone who can help.
At Los Soledad, Professor Paradox arrives, explaining to No Watch Ben the concept of the multiverse; an infinite number of Ben Tennysons exist through multiple versions of the universe, but someone has been kidnapping them. No Watch Ben is an anomaly, as he is the only Ben Tennyson who has never even heard of the Omnitrix, and he is being targeted for an unknown reason. Ben Prime is certain that Eon is behind the kidnappings, but Paradox notes that Eon would never leave tracks behind, suggesting that Eon works for a higher power. Paradox departs, instructing Ben Prime to protect his defenseless counterpart.
No sooner than Paradox leaves, Eon shows up to attack No Watch Ben, forcing Ben Prime to transform into Wildmutt and defend him. Ordered to escape, No Watch Ben runs for his life but comes across Vilgax, who reveals himself to be the one working with Eon. Vilgax tells them that he and Eon have been kidnapping Ben Tennysons across the multiverse to corrupt them, giving Vilgax control of an army of Omnitrix-wielding warriors. Bad Ben, Albedo, Benzarro, Mad Ben, and Nega Ben all reveal themselves. Vilgax states that No Watch Ben, though lacking an Omnitrix of his own, is a wild card that must be eliminated. Before the evil Bens can destroy the two Bens, Paradox shows up with reinforcements: Ben 10,000, Ben 23, and Gwen 10. The good and evil Bens go alien to fight it out, while Ben Prime tells No Watch Ben to escape and hide. No Watch Ben is constantly stopped by the evil Bens but is saved every time by an ally until Eon chases him down. Ben Prime transforms into Astrodactyl and swoops in and takes No Watch Ben to safety. No Watch Ben laments his lack of an Omnitrix. However, Astrodactyl simply tells him that "it's just a gadget", and simply having the Omnitrix doesn't make him a hero.
On the top of a building, Vilgax watches the battle. Eon approaches him and asks why Vilgax isn't fighting. Vilgax retorts angrily that Eon is in no position to make demands and orders him to open the portal. Eon grudgingly complies, and Vilgax pulls out a bomb through the portal. Eon reminds Vilgax of their partnership and points out he wasn't informed about a bomb; Vilgax answers that the bomb is a Chronosapien Time Bomb and begins activating it. Eon gleefully assumes that Vilgax intends to erase No Watch Ben from existence with the bomb, but Vilgax corrects him. The bomb will not affect No Watch Ben or his timeline. Instead, it will erase every other Ben Tennyson from existence. Eon blanches, remembering that he himself is an alternate version of Ben. Vilgax calmly thanks Eon for his help and tells him that his assistance is no longer required. As the bomb activates, Eon tries to escape but is swallowed up by the blast. No Watch Ben notices the blast and turns to ask Paradox for advice, but he is not there. The blast spreads, wiping out the other Bens one by one, save for Ben Prime who regroups with No Watch Ben, heroically shielding him from the blast. As Ben Prime fades into non-existence, his Omnitrix falls onto No Watch Ben's wrist and connects. Ben Prime instructs No Watch Ben to "be the hero" as he fades away.
No Watch Ben is soon attacked by Vilgax who manages to conceal the Omnitrix on his wrist from Vilgax's sight. Vilgax gloats that this was the sole reason he hunted down No Watch Ben; to destroy all the wielders of the Omnitrix at once. Declaring that No Watch Ben is no threat to him, Vilgax attacks, but Paradox pulls No Watch Ben to safety via a portal. Vilgax taunts No Watch Ben, declaring that he is doomed to run away in fear of Vilgax for the rest of his life. Paradox takes Ben to a pocket dimension outside of time and space, where he confirms Vilgax erased all Ben Tennysons from the multiverse, leaving No Watch Ben as the last remaining Ben Tennyson. No Watch Ben sadly looks down, but regains a determined look on his face, ready to face whatever comes next. Paradox cryptically informs No Watch Ben that they will have to return "to the beginning".
==Noteworthy Events==
===Major Events===
*The No Watch Timeline is shown for the first time.
*All the timelines, except the No Watch Timeline are wiped out by the Chronosapien Time Bomb.
*No Watch Ben becomes the temporary wielder of the Omnitrix.
====Character Debuts====
*No Watch Ben
*Mrs. Rheault (No Watch Timeline)
*JT (No Watch Timeline)
*Max Tennyson (No Watch Timeline)
*Gwen Tennyson (No Watch Timeline)
*Kevin Levin (No Watch Timeline)
*Natalie Alvarez (No Watch Timeline)
*Madison (No Watch Timeline)
*Madison's Father (No Watch Timeline)
*Gwen 10
*Bad Ben
*Benzarro
*Nega Ben
*Mad Ben
====Hero Watch Alien Debut====
*Build-A-Guy 
====Biomnitrix Alien Debuts====
*Fourmungousaur
*Atomic-X
===Minor Events===
*It's revealed that, in the No Watch Timeline, Ben never had any contact with the Omnitrix.
==Characters==
===Main Characters===
*No Watch Ben (first appearance)
===Supporting Characters===
*Max Tennyson (No Watch Timeline) (first appearance)
*Ben Tennyson
*Professor Paradox
*Ben 10,000
*Ben 23
*Gwen 10 (first appearance)
===Antagonists===
*Bad Ben (first appearance)
*Albedo
*Benzarro (first appearance)
*Eon
*Vilgax
*Nega Ben (first appearance)
*Mad Ben (first appearance)
===Other Characters===
*Mrs. Rheault (No Watch Timeline) (first appearance)
*JT (No Watch Timeline) (first appearance; cameo)
*Gwen Tennyson (No Watch Timeline) (first appearance)
*Kevin Levin (No Watch Timeline) (first appearance; cameo)
*Natalie Alvarez (No Watch Timeline) (first appearance; cameo)
*Madison (No Watch Timeline) (first appearance; cameo)
*Madison's Father (No Watch Timeline) (first appearance; cameo)
==Aliens Used==
===By Ben Prime===
*Spidermonkey
*Wildmutt
*Astrodactyl
===By Bad Ben===
*Ghostfreak
*Gravattack
===By Albedo===
*Humungousaur (cameo)
**Ultimate Humungousaur
*Ultimate Spidermonkey
===By Benzarro===
*Frankenstrike
*Snare-Oh
===By Ben 10,000===
*Fourmungousaur (first appearance)
*Atomic-X (first appearance)
===By Ben 23===
*Build-A-Guy (first appearance)
===​By Gwen 10===
*Wildvine
===By Nega Ben===
*Gutrot
===By Mad Ben===
*Rath
==Quotes==
==Naming and Translations==
==Cast==
==Allusions==
*And Then There Were None, along with And Then There Was Ben, are names parodying the title of the very first episode of Ben 10, And Then There Were 10.
*And Then There Were None is the title of a mystery novel by Agatha Christie.
*Mrs. Rheault references the "I can has cheezburger?" meme. 
*No Watch Ben's soccer team plays against the Crystal Cove Fighting Urchins from Scooby-Doo! Mystery Incorporated.
*No Watch Ben's line "Strange things are afoot at the Mr. Smoothy's", is a reference to a line from Bill & Ted's Excellent Adventure when Ted Logan says "Strange things are afoot at the Circle K".
*Benzarro says, "Ben smash!", which is a reference to the Hulk's catchphrase, "Hulk smash!".
==Errors==
*When Bad Ben activates his Omnitrix for the first time, its interface is green instead of mint green.
*When Negative Ultimate Humungousaur attacks No Watch Ben, some of his helmet is blue instead of silver.
*In some shots, Nega Ben's hoodie is dark green and black rather than grey and black.
*Nega Gutrot's skin and acid gas clouds are colored pink/purple instead of grey.
*When Bad Gravattack finds No Watch Ben, his Omnitrix symbol's rim is purple.
*After Astrodactyl saves No Watch Ben, his toes are green.
*When Eon explains how it took time to assemble Bens from across the Multiverse, his mouth isn't moving even though his voice is heard.
*Vilgax mentions fighting Ben for over a decade, but he has only been fighting him for six years.
*Mad Rath glows red instead of orange when he transforms back into Mad Ben.
*When Gwen 10 grabs Albedo, he is far shorter than he actually is.
ATTWN (91).png|Interface error
ATTWN (136).png|Helmet error
ATTWN (266).png|Green hoodie
ATTWN (347).png|Omnitrix symbol rim error
ATTWN (357).png|Toes error
ATTWN (444).png|Red flash
ATTWN (457).png|Height error
==Trivia==
*In the U.K., Season 6 debuted with The Vengers, rather than this episode or And Then There Was Ben.
*This episode and And Then There Was Ben are Derrick J. Wyatt's fourth-favorite episode of Omniverse.
*In 2013, Matt Wayne doubted that Eon and Vilgax would ever team up.
*Even though this episode was produced as part of the Galactic Monsters arc, it does not use the Galactic Monsters opening sequence. This is because Derrick did not consider this and the next episode to be part of Galactic Monsters' story.
==References==
===Crew Statements===
====Dou Hong====
====Derrick J. Wyatt====
====Matt Wayne====
===Cartoon Network===
es:El principio del último
pl:I nie było żadnego
pt-br:E Então Não Havia Mais Ninguém
ro:Și apoi nu mai era nici unul
ru:И не Осталось Никого
Category:Episodes
Category:Ben 10: Omniverse Episodes
Category:Episodes Aired Out of Production Order
Category:Ben 10: Omniverse Season 5 Episodes
Category:Episodes Written by Eugene Son
Category:Episodes Directed by Jae Woo Kim
Category:Time War Arc
Category:No Watch Timeline