Ben 10-Generator Rex: Heroes United

Ben 10-Generator Rex: Heroes United is an extended episode of Generator Rex with a guest appearance of Ben 10. It aired on November 25, 2011, Black Friday.

Plot


The story begins with a mysterious rift openening in the skies above New York City. Meanwhile, Rex is sparring against Agent Six, while musing about his need for a "Theme song" (and briefly performing a take on the original Ben 10 theme song) before getting the alert about the rift. Providence appears on the scene to stop the rift, but are unable to do anything before Rex arrives with Six and Bobo. Holiday then gets a scan that shows something is coming through the rift, and Rex finds himself face to face with Humungousaur, and the two begin battling it out in Central Park. During their skirmish, a strange metallic creature also appears and heads into the city, with Bobo and Six on it's trail while Rex continues to battle Humungousaur, who changes into Diamondhead, much to Rex's shock. Rex is also troubled by the fact that his ability to cure has no affect on his opponent.

Meanwhile, Six engages the creature and manages to cut a piece of it off, which is then taken by Rex's brother, Cesar. Rex and Diamondhead then wind up on the Brooklyn Bridge, where the latter changes into Lodestar before the fight takes to the rooftops. However, a falling Billboard forces the two to stop fighting, with Lodestar becoming Rath to save news reporter Diane Farah. Rex then literally gets the drop on Rath and once again attempts to cure him of his nanites, only for Rath to change into his true form, Ben Tennyson. Ben is shocked to learn that no one knows about him, despite his claim of being famous, but Six appears with the creature, which self-destructs and renders him comatose, leaving Rex mortified and angered.

At the hideout, Holiday explains that the creature was Nanite in origin, but somehow completely different from an EVO. Ben, who has been contained by Rex, escapes as Big Chill after failing to gain the group's trust, and flies off with Rex in hot pursuit. The two clash, while being tailed by a strange ball of red energy. Ben finally comes to grasp that he must be in an alternate dimension, and Rex and he finally come to a truce. Cesar then appears and seemingly prepares to attack the two with a ray gun, which was actually intended for the energy ball, which is revealed to be the Alpha Nanite, a creation of Caesar's.

After escaping the creature, Caesar explains that he created Alpha as a means of manufacturing nanites that could adapt for any scientific need, but became unstable as it developed sentience, forcing Caesar to banish it to another dimension. Ben surmises it may have been the Null Void where it wound up, and that Alpha must have absorbed alien life to develop it's current form. Caesar explains that the damaged ray gun was to stop Alpha, who then attacks and destroys his flying lab. Ben saves Rex by becoming Cannonbolt, and the two return to base when Alpha invades to absorb EVOs for their nanites, hoping to gain control of Rex's as it knows he holds the key to it obtaining perfection. Ben and Rex eventually manage to drive Alpha off, and then slowly bond after sharing their origins.

White Knight then reveals that Alpha has gone to the Bug Jar, which is full of EVOs for it to absorb. Rex, White Knight, and Ben arrive, only to find themselves against the nearly invincible Alpha, which begins to attack to take control of Rex's Omega Nanite. During the battle, Ben gains the form of Shocksquatch, but then temporarily loses his powers when Alpha copies the Ulimatrix and takes on Nanite powered versions of Heatblast, Fourarms, and Ultimate Humungousaur. After a tough battle, Rex is able to disable Alpha's imitation Omnitrix powers, but is ensnared and robbed of his Omega Nanite, leading to Nanite Alpha to transform into a colossal being calling itself Alpha-Omega; the beginning and the end.

As the now nearly unstoppable Alpha-Omega rampages, Rex has doubts about himself now that most of his builds are gone. Ben however comes up with a plan, and transforms into Upgrade and merges with Rex, "You build stuff, I make it better. Fight fight fight, we win." The duo then take on the Alpha-Omega, weakening it enough for Rex to finally condense Alpha into a sphere of matter that weighs several tons. As Alpha was being condensed, Caesar appears and extracts the Omega Nanite. Attempting to dispose of Alpha, Caesar then opens a rift for Ben, who changes into Upchuck and devours the compacted Alpha as he departs.

In the epilogue, Rex is overjoyed that Six has recovered, and wonders if he'll ever see Ben again. Six suggests that they possibly will, if fate had ordained for them to meet once already. Caesar appears and injects the Omega Nanite into Rex, who fears that it may actually be the Alpha Nanite, although Caesar assures him that there is a 99.998% chance that it is Omega. Finally, in the depths of the Null Void, the Alpha begins to stir within it's prison of matter.

Major Events

 * Ben travels to an alternate universe and meets Rex Salazar.
 * Ben transforms into Shocksquatch for the first time.
 * 2 of Ben's original aliens return (XLR8 and Upgrade).
 * Ben turns into Upgrade and merges with Rex.
 * Ben gets a new alien and Rex gets a new machine.

Characters

 * Ben Tennyson
 * Rex Salazar
 * Agent Six
 * Rebecca Holiday
 * White Knight
 * Black Knight
 * Bobo Haha
 * Caesar Salazar
 * Gwen Tennyson (in Flashback)
 * Max Tennyson (in Flashback)
 * Kevin Levin (in Flashback)

Villains

 * Alpha Nanite
 * Alpha Omega (Evolution fusion of Alpha Nanite with the Omega Nanite)

By Ben

 * Humungousaur
 * Diamondhead (x3)
 * Lodestar
 * Rath (x2)
 * Big Chill (x3)
 * Cannonbolt (x2)
 * XLR8 (first reappearance since Original series)
 * Four Arms
 * Upgrade (first reappearance since Original series)
 * Shocksquatch (debut)
 * Upchuck

By Alpha

 * Heatblast
 * Four Arms
 * Humungousaur

Rex's Machines Used

 * Smack Hands
 * Blast Caster
 * Slam Cannon
 * The B.F.S
 * Boogie Pack
 * Funchucks
 * Upgrade Suit (first appearance for Rex)
 * Rex Ride
 * Punk Busters
 * Block Party

Errors

 * When Ben transformed into Upgrade, the Ultimatrix symbol wasn't there.
 * When Ben and Rex were on the building, Lodestar's mouth was open.
 * In the flashback, Kevin has light in his hair.
 * In the flashback, Stinkfly's Ultimatrix symbol is on his head, there are two Echo Echoes, each with different lip colors, Goops anti-gravity disk is gone, also Big Chill wings are gone, and the eyes of Ripjaws are pink instead of green.
 * When Rex is first holding Six his glasses are off and his eyes are closed, then when Rex tells Ben it was all his fault Six has his glasses on.
 * In the flashback, Rath's fur is gone, while when not in the flashback, his fur is there.

Trivia

 * Ben and his alien counterparts are animated in the art style of Generator Rex.
 * The crossover is a part of Generator Rex's regular production cycle.
 * The lake where Diamondhead and Rex fight has an aerial view with the form of Ultimatrix.
 * Diamondhead turns his arm into a diamond cluster when fighting Rex that is similar to a toy part coming with the new Diamondhead action figure.
 * This is the first time we see Ben turn into Shocksquatch.
 * This is the first episode since the original series where Ben doesn't call out any of his known alien's names. This includes Shocksquatch.
 * Gwen, Kevin, and Grandpa Max appear in flashback as well as a variety of Ben's aliens. A flashback of 10-year-old Ben was also shown.
 * The transformation sequences of Ben's aliens, however there is a transformations sequence for Alpha Heatblast.
 * Ben seems to revert back to human form, then transform into another alien right after being captured by Providence.
 * Caesar seems to have been able to access the Null Void from Rex's World.
 * The Null Void is seen at the end of the special, hinting at Alpha's return. Ben's World was also revealed during Ben's Flashback.
 * None of Ben's Ultimate Forms appear in the special, even though three aliens that do appear (Humungousaur, Big Chill and Cannonbolt) have Ultimate versions.
 * Ben doesn't shout his alien names.
 * Rex's theme song is like Ben 10 theme song.