Primus (Episode)

Episode Information
Episode Number: 40

US Airdate: 15 January, 2010

Summary
In the middle of fighting another Techadon robot, Ben, as Lodestar, Gwen, and Kevin are unexpectedly transported by the Omnitrix to an alien planet named Primus. They soon discover that they are not alone and that Vilgax is there to stop the Omnitrix from its source.

After being attacked by various, blue alien creatures, Ben, Gwen and Kevin find Vilgax fighting Humongousaur, who turns out to be Azmuth. Also, turing into Rath, Azmuth is defeated by Vilgax. Vilgax takes the Omnitrix, but cant figure out how to use it. Ben explain it to him, turns him into Goop, and turns off his anit-gravity projector, leaving Vilgax poweless. Ben takes it off him, which imediatly turns him back. Ben Turns into Cannonbolt and kicks Vilgax into the lava, transforming him to about 100 ft tall. Ben then defeats him as Way Big, making this the second time Way big defeats Vilgax. At the end, despite not intending to forgive Ben for damaging the Omnitrix, Azmuth allows him to keep it anyway.

Main Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin
 * Vilgax
 * Psyphon
 * Techadon Robot
 * Azmuth

Omnitrix Aliens

 * Lodestar
 * Humongousaur (Used by Azmuth)
 * Rath (Used by Azmuth)
 * Goop (Used by Vilgax)
 * Cannonbolt
 * Way Big

Trivia
 * Primus is also a code on the video game Ben 10 Alien Force Vilgax Attacks, to get back all your aliens after you lose them in the first level.
 * In the Oringinal series, Vilgax can activate and deactivate the Omnitrix but now he can't even make the face plate come up.
 * Vilgax finally gets the Omnitrix for the first time.
 * We see Azmuth use the Omnitrix for the first time.
 * This episode was the first time in the main storyline that someone besides Ben used the Omnitrix. Although others have used the Omnitrix in the series, it has always been an alternate storyline episode or a fantasy.
 * This is the third time Ben has tried to transform into Humungousaur and transformed into Lodestar instead.
 * Incidentally, although the appearance of the alien the user transforms into depends on the appearance of the user himself, both Azmuth and Vilgax's transformations were identical to Ben's. This maybe due to the fact that since Ben has been had been wearing the Omnitrix for so long, it was still callibrated to his DNA when Azmuth and Vilgax used it.
 * Although Grey Matter has the Omnitrix symbol on his back, Azmuth (being a Galvan as well) wore the Omnitrix with the symbol facing forward.