And Then There Was Ben

And Then There Was Ben is the tenth and final episode of the fifth season of Ben 10: Omniverse, and the fiftieth episode overall.
==Synopsis==
Professor Paradox unites the good Bens from across all dimensions to take on Vilgax, Eon, and the evil Bens in the ultimate showdown!
==Plot==
With all the other Ben Tennysons across the Multiverse wiped out, No Watch Ben is the only Ben remaining. Professor Paradox informs him that to undo the damage Vilgax has done, they will have to fix the timestreams. Paradox brings Ben onto Vilgax's spaceship from the original timeline, before the original Omnitrix fell to Earth and was found by Ben Prime.
Paradox explains that due to the damage to the timestreams, Ben Prime never found the Omnitrix. No Watch Ben now must ensure that the events take place as they originally did. As Vilgax chases down Xylene, No Watch Ben transforms into Grey Matter and disables the ship's shields, allowing Xylene's ship to fire a blast and injure Vilgax. The pod holding the Omnitrix is jettisoned, but Paradox notes that its trajectory has been altered and it will not reach Ben Prime. No Watch Ben turns into Cannonbolt, catapulting through an escape hatch and slamming into the Omnitrix pod, sending it back on its destined course towards Ben Prime. Finally, No Watch Ben uses Armodrillo to nudge Ben Prime into the Omnitrix's crater, where the young Ben Prime meets his destiny as the Omnitrix latches onto his wrist. As Ben Prime experiments with the Omnitrix and transforms into Heatblast and eventually causes a forest fire, Paradox informs No Watch Ben that he must now unite the other good Bens from other dimensions for the ultimate showdown between them, the evil Bens, Vilgax and Eon.
Paradox brings No Watch Ben to another dimension, where No Watch Ben notes that the Omnitrix did not find its way to this Ben either. He is quickly attacked by Gwen 10 as XLR8, and he transforms into Wildmutt to halt her, successfully doing so (and XLR8 reverts back into Gwen) and allowing Paradox to make his explanations. The group proceeds to Dimension 23, where Eon is attacking Ben 23 who had transformed into Eye Guy, demanding that he joins his forces. Before No Watch Ben and Gwen can intervene, Paradox cautions them that appearing in front of Eon would alert him to their plan and distort the timelines. Gwen is adamant that they help, and No Watch Ben reasons that they must only do so without alerting Eon. A blast from Eon cloaks the area in a cloud of dust, and both No Watch Ben and Gwen seize the chance; Eye Guy transforms back into Ben 23, and he is injured from the battle with Eon. No Watch Ben rescues Ben 23 while Gwen takes over as Diamondhead, with Eon none the wiser about the switch. No Watch Ben gives Ben 23 a full update while Gwen attacks Eon ferociously, surprising the villain with her skill. As Gwen is sent flying, Ben 23 switches back in as Big Bug to attack Eon. Eon beats a hasty retreat to find other Bens that are easier to persuade, and the group of heroes move on. They stop short of recruiting an alternate version of Argit who found the Omnitrix, and instead visit Ben 10,000, who quickly grasps the situation. Ben 10,000 turns No Watch Ben into Clockwork, hoping to use his time powers, but Paradox reminds him that Clockwork creates a ripple effect in time whenever he uses his powers, which Eon is capable of detecting. No Watch Ben reverts to normal and decides not to use Clockwork to prevent Eon from being alerted, and the group proceeds to recruit Ben Prime who immediately joins.
In a pocket dimension, Ben 10,000 and Ben Prime give the team a pep talk before Paradox takes them to fight the villains, right at the point where they appeared in the previous episode, but No Watch Ben is shocked when Paradox leaves him behind. He becomes depressed, thinking that he cannot be acknowledged as a hero, but Paradox reappears behind him and reassures him otherwise; Paradox didn't bring No Watch Ben to the fight because it would have irreparably damaged his own timeline.
Paradox and No Watch Ben re-enter No Watch Ben's timeline just after Vilgax taunted him. Vilgax mocks No Watch Ben, stating that even with an Omnitrix, he poses absolutely no threat. No Watch Ben turns into Clockwork and uses his powers to undo the effects of the Chronosapien Time Bomb, restoring all of the other Bens, much to Vilgax's fury. Eon attacks Vilgax for his betrayal, only to be knocked away by Fourmungousaur as the other Bens continue their fight, save for Ben Prime who doesn't have his Omnitrix. Clockwork sends all the evil Bens back to their own timelines, including Eon. Left alone, Vilgax roars at the good Bens in anger. No Watch Ben reverts, takes off Ben Prime's Omnitrix and tosses it back to its owner. Then, Ben Prime transforms into Diamondhead, Ben 10,000 transforms into Atomic-X again, Ben 23 transforms into Electricyeti, and Gwen 10 transforms into Cannonbolt. Together, they defeat Vilgax in a series of combination attacks and No Watch Ben delivering a powerful kick that knocks Vilgax out.
Victorious, Ben 10,000 escorts Gwen and Ben 23 to their respective timelines with Paradox. As the remaining Bens wonder what to do with Vilgax, Max Tennyson shows up to take Vilgax into custody, backed by the rest of Earth's Plumbers. No Watch Ben is thrilled to learn that his grandfather is a "totally awesome space secret agent," as Paradox returns to take Ben Prime back to his proper timeline. Ben Prime is pleased that despite lacking an Omnitrix, No Watch Ben might have turned out to be a hero in his own right. Paradox agrees, remarking on the mysteries of the multiverse and its numerous branched timelines and stories, taking the prime Ben Tennyson home.
==Noteworthy Events==
===Major Events===
*The Chronosapien Time Bomb's effects are undone, restoring all the Bens and the timelines in the process.
*All the evil Bens are sent back to their timelines.
*No Watch Ben gives the Omnitrix back to Ben Prime.
*Vilgax is defeated by Ben Prime, Ben 23, Ben 10,000 and Gwen 10.
====Character Debuts====
*Ben Tennyson (Gweniverse)
*Max Tennyson (Gweniverse)
*Argit (Argitrix Timeline)
*Jerry (No Watch Timeline)
*Bromeba (No Watch Timeline)
*Magister Patelliday (No Watch Timeline)
*Bioids (Omniverse debut)
*Kenko (Omniverse debut)
====Original Omnitrix Alien Debuts====
*Heatblast (Omniverse debut by 10-year-old Ben)
====Hero Watch Alien Debuts====
*Big Bug
*Vomit Man
*Eye Guy (Dimension 23)
===Minor Events===
*It is revealed that No Watch Ben was the responsible for Vilgax becoming severely injured and Ben Prime receiving the Omnitrix.
*No Watch Ben finds out that his timeline's Max is a Plumber.
==Characters==
===Main Characters===
*No Watch Ben
===Supporting Characters===
*Ben Tennyson (10 and 16 years old)
*Professor Paradox
*Gwen 10
*Ben 23
*Ben 10,000
===Antagonists===
*Vilgax (past and present)
**Bioids (first reappearance; past)
*Eon
*Albedo (cameo)
*Mad Ben (cameo)
*Bad Ben
*Benzarro
*Nega Ben
===Other Characters===
*Ben Tennyson (Gweniverse) (first appearance; cameo)
*Max Tennyson (Gweniverse) (first appearance; cameo)
*Argit (Argitrix Timeline) (first appearance; cameo)
*Ken Tennyson
*Ishiyama (video game; cameo)
*Kenko (first reappearance; video game; cameo)
*Gwen Tennyson (photo)
*Kevin Levin (photo)
*Plumbers (No Watch Timeline)
**Max Tennyson
**Jerry (first appearance; cameo)
**Bromeba (first appearance; cameo)
**Magister Patelliday (first appearance; cameo)
==Aliens Used==
===By 10-year-old Ben Prime===
*Heatblast (first reappearance by 10-year-old Ben)
===By 16-year-old Ben Prime===
*Diamondhead
===By No Watch Ben===
*Grey Matter
*Cannonbolt
*Armodrillo
*Wildmutt
*Clockwork (x2)
===By Gwen 10===
*XLR8
*Diamondhead
*Wildvine
*Cannonbolt
===By Ben 23===
*Eye Guy (first appearance)
*Big Bug (first appearance)
*Build-A-Guy (cameo)
*Vomit Man (first appearance)
*Electricyeti
===By Ben 10,000===
*Atomic-X (x2; first time was a cameo)
*Fourmungousaur (cameo)
===By Bad Ben===
*Gravattack (cameo)
*Buzzshock (cameo)
===By Nega Ben===
*Gutrot (cameo)
===By Benzarro===
*Frankenstrike
===By Albedo===
*Ultimate Echo Echo
==Quotes==
==Naming and Translations==
==Cast==
==Allusions==
*And Then There Was Ben, along with And Then There Were None, are names parodying the title of the very first episode of Ben 10, And Then There Were 10.
*The Sotobro Effect is named after Alex Soto, the supervising producer and director of the Original Series.
*The way Argit swims in money is the same as Scrooge McDuck from DuckTales.
*The freeze frames when Diamondhead, Electricyeti, Atomic-X, and Cannonbolt are fighting Vilgax are a reference to those in the Original Series.
*When No Watch Ben says "Smell you later, Gwen", it is a reference to the same line said in Goodbye and Good Riddance.
*Paradox's quote, "There are so many different ways to tell a story, but that's what makes them so interesting; you could never predict how they are going to turn out," is similar to what the Seer says at the end of Gwen 10.
==Errors==
*When Ben Prime got the Omnitrix in And Then There Were 10, he started screaming only after he found out that he had turned into Heatblast. However, during the same sequence in this episode, Ben screams during the transformation. 
*When 10-year-old Ben Prime turns into Heatblast, his Omnitrix symbol is black and green instead of grey and white.
*In multiple shots, Gwen 10's Omnitrix is missing.
*In the scene with Ben 10,000, Gwen, and Ben, Ben's hair isn't shaded.
*After No Watch Ben restores all the Bens from the Chronosapien Time Bomb, Albedo has the same colors as Young Ben.
*When Ben Prime was erased from existence, he was on top of the tower with No Watch Ben, but when he is restored to existence, he is on the ground.
*When No Watch Clockwork sends the evil Bens back to their timelines, Wildvine and Vomit Man do not return to their timelines despite being hit by the ray. 
*When Ben Prime receives his Omnitrix, a part of it is green instead of white.
*When Gwen as Cannonbolt first attacks Vilgax, her shell is colored yellow instead of blue.
*The end credits have several errors:
**Bad Ben is credited despite not speaking.
**Nega Ben is credited as "Nega-Ben".
**Benzarro is credited as "Benzano".
**Gwen 10's versions of Wildvine and Diamondhead are credited as such rather than "Gwen Florauna" and "Gwen Petrosapien".
**Heatblast, Clockwork, Wildmutt and Gwen 10's version of XLR8 are not listed.
TWB (140).png|Omnitrix symbol color error
TWB (342).png|Missing Omnitrix
TWB (339).png|Shading error
TWB (396).png|Ben Prime error
TWB (398).png|Albedo error
TWB (510).png|Omnitrix error
TWB (540).png|Yellow shell
TWB (621).png|Credit errors
TWB (622).png|Credit errors
==Trivia==
*This episode and And Then There Were None are Derrick J. Wyatt's fourth-favorite episode of Omniverse.
*The lines for this episode were recorded sometime on January 16, 2013.
*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 previous episode to be part of Galactic Monsters' story.
==References==
===Crew Statements===
====Dou Hong====
====Derrick J. Wyatt====
====Matt Youngberg====
===Cartoon Network===
es:Y al final quedó Ben
pl:I pojawił się Ben
pt-br:E Então Havia o Ben
ro:Și apoi a apărut Ben
ru:И там был Бен
tr:Ve Sonra Ben Tane Var
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 Thomas Pugsley
Category:Episodes Directed by Dan Riba
Category:Time War Arc
Category:No Watch Timeline