The Transmogrification of Eunice

The Transmogrification of Eunice is the 21st episode of Ben 10: Ultimate Alien and it is the first episode of the second season.

Plot
Ben and Kevin are racing with each other in their cars and Gwen thinks they're acting immature. As they begin to reach their campsite, an alien spaceship crash-lands. Out of the ship comes a small pod which contains a naked girl covered in green mist.

Ben gives the girl his jacket and all the girl can remember is that her name is Eunice (it's really "Unitrix" but she couldn't remember her full name at the time). They let her stay and also volunteer to help her get her memory back.

Gwen gets jealous because of Kevin's possible crush on Eunice. Ben makes a good impression on Eunice and they seem to be getting along. They enjoy the day by fishing and telling stories. Gwen becomes very angered about Ben and Kevin's crushes on Eunice as she is angered that Ben's new crush on Eunice as a replacement for his old crush on Julie.

As Ben and Eunice are walking, they seem to be followed. Eunice is attacked by a bear and Ben becomes Armodrillo to save her. However, it seems that Eunice seemed to have calmed the bear like all the other animals that surrounded her. Suddenly, when Ben was not looking, Eunice flashed green near the bear and with incredible super strength she absent-mindedly pushes a boulder aside.

Meanwhile, Sunder is at Eunice's ship, angered about what was missing. However, he sees the tire tracks from Ben and Kevin's cars, and looks pleased. Ben and Eunice continue walking in the woods and their crushes on each other grow as they were about to kiss until Sunder attacks them. Ben transforms into Spidermonkey and then later becomes Ultimate Spidermonkey to show Sunder his new bag of tricks.

It is revealed that Sunder is after Eunice and then Eunice strangely escapes by hopping high like a rabbit after coming into contact with a rabbit. Ben comes back to Gwen and Kevin and Gwen is able to track Eunice because Eunice was wearing her spare clothes.

They track Eunice to a mountain high up and Sunder finds them all again. Ben becomes NRG to fight Sunder, but Sunder manages to defeat him, Gwen and Kevin and begins telling Eunice that he can help her. However, Sunder presses a button on the back of Eunice's neck, which turns her into an Omnitrix core.

Ben begins to chase after Sunder as Cannonbolt and then becomes Ultimate Cannonbolt to get rid of the obstacles near him. Ben and Sunder begin to fight as Ben wants to hurt Sunder for what he did to Eunice.

But Sunder uses a device that makes Ben dizzy in order to be defeated. Gwen and Kevin arrive to help, and they manage to defeat Sunder and retrieve the Eunice Omnitrix core. After pressing a button, they turn Eunice back to her normal self. Eunice receives the agility of a snake and starts beating Sunder up, demanding to know who she is.

Suddenly, Azmuth arrives and reveals he hired Sunder and that Eunice is the Unitrix, a prototype model of the Omnitrix called a Unitrix. Instead of a device that would store all the collected DNA in one place Azmuth had planned to store the DNA in individual containers in other words Unitrix's. It is revealed that Eunice got her human form from Gwen when she touched her ship which sampled her DNA and randomized (modified it into a completely different sample) it.

Azmuth, under Ben's compromise, allows Eunice to have a free life and to be one of his assistants as he always need of a helping hand on taking care of Primus. Azmuth, Eunice and Sunder leave and Eunice leaves behind a flower petal for Ben as a reminder of her.

Major Events

 * Introduction of the Eunice/Unitrix, a prototype model of the Omnitrix.At the camp fire.PNG
 * Eunice has become one of Azmuth's assistants.
 * Ben and Eunice develop romantic feelings for each other.
 * It is revealed that Ben and Julie apparently broke up or at least "might as well be broken up."
 * Sunder returns since Alien Force.

Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin
 * Eunice (the Unitrix)
 * Azmuth
 * Sunder (reformed at the end of the episode)

Villains

 * Sunder (working for Azmuth and first re-appearance)

Aliens Used

 * Armodrillo
 * Spidermonkey
 * Ultimate Spidermonkey
 * NRG
 * Cannonbolt
 * Ultimate Cannonbolt

Errors

 * When the Unitrix is transformed back into Eunice, she has dirt in her hands and legs (which should not happen because Eunice is being transformed into by a DNA sample), but in the close-up, she seems to be clean.
 * Ben transformed into Spidermonkey but when he was shouting his name, the torso down the head wasn't dark blue, it was the standard blue in his head.

Trivia

 * It is indirectly mentioned how important Primus is to the Ultimatrix, as Azmuth is always in need of a helping hand in tending Primus.
 * In arabia, the scene where Ben and Eunice about to kiss is censored.
 * This is the 5 year celebration of Ben 10.