Mark 12 secret of the Ultimatrix.

Secret Of The Omnitrix is the first Ben 10 film released.

Plot
Ben fights Dr. Animo as he has kidnapped Gwen and Grampa Max and threats to release his DNA bomb and de-evolutionize the world. Ben (as Heatblast, XLR8, or Eye Guy in different beginnings) rescues Grampa and Gwen, defeats Animo's latest invention, and sets off an error in the bomb by overloading the system. A DNA wave blows through and damages the Omnitrix. Ben changes into Grey Matter and knocks out Dr. Animo. Gwen, Ben and Grampa go to the shopping mall but the Omnitrix releases a sudden energy burst, banning them from the mall.

Tetrax senses the Omnitrix and comes to Earth to warn Ben about the Omnitrix. The watch is in self-destruct mode and will destroy itself along with Ben (along with the universe, but Tetrax does not reveal this until later). Ben, Tetrax and his pilot, Gluto, travel across the galaxy to find Azmuth, the creator of the Omnitrix. Gwen soon appears on the ship to help Ben. They find the DNA signature of Azmuth on the Omnitrix and find that he is on Incarceon, the prison planet.

After some time of searching on Incarcecon, Ben (in a costume with Gwen) thinks he spots Vilgax. He changes into Upchuck and fights her, only to reveal that "Vilgax" is a female Chimera Sui Generis, Myaxx, who claims she created the Omnitrix. Ben, Gwen and Tetrax get themselves in a street-fight. Actually, onboard the ship, she reveals she was Azmuth's assistant and directs Ben and the others to Xenon, where Azmuth lives. Soon, it was intercepted and boarded by Vilgax and his drones, but they were stopped by Ben, Gwen, Tetrax, Gluto, and Myaxx. In that action, Gluto is assumed dead.

When they got to Xenon, they were attacked by a group of wild Floraunas, where Gwen was captured by them and assumed dead. After Ben's sadness, Tetrax told him the tragic story about him bringing Vilgax the final element he needed to destroy his home planet, Petropia. Even though transforming would accelerate the self-destruct, Ben transformed into Cannonbolt to break into Azmuth's lab, but Azmuth refused to help them. Ben then sees Vilgax, Sixsix and their massive army of drones. Azmuth removed the main part of the Omnitrix, but Ben, Tetrax and Myaxx still fought.

Soon, it was revealed, that Gwen and Gluto were still alive and helped battle. Soon, Azmuth fixes the Omnitrix and unlocks Way Big. Ben then transforms into Way Big, defeats Vilgax's army of drones, grabs Vilgax and throws him into space.

Ben is brought back to Earth, finding out that zombies are attacking the mall, and heads off to stop them.

Major Events

 * Ben and the gang meet up with Tetrax again.
 * Ben and Gwen first meet Azmuth.
 * Ben transforms into Way Big for the first time.
 * Ben learns about the Omnitrix's self destruct mode.
 * Ben loses his hoverboard but gains a new one.
 * Ben learns not to be selfish and realizes he is a hero even without the Omnitrix.

Character Debuts

 * Azmuth
 * Myaxx
 * Gluto

Omnitrix alien debuts

 * Way Big

Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Max Tennyson
 * Azmuth
 * Tetrax
 * Gluto
 * Myaxx

Villains

 * Dr. Animo
 * Vilgax
 * Sixsix
 * Vilgax's Drones
 * Lepidopterran Prisoner
 * Piscciss Volann Prisoners
 * Tetramand Prisoner
 * Galvanic Mechamorph Worker
 * Alien Prisoner 1
 * Alien Prisoner 2
 * Alien Prisoner 3
 * Alien 1
 * Alien 2
 * Incarcecon Security
 * Florauna

Aliens Used

 * Heatblast, XLR8 or Eye Guy (alternate versions)
 * Stinkfly
 * Wildmutt (2x) (accidental transformations; the first selected alien was Stinkfly, the second was XLR8)
 * Diamondhead (accidental transformation; selected alien was Stinkfly)
 * Grey Matter (accidental transformation; selected alien was Stinkfly)
 * Upchuck
 * Four Arms
 * Cannonbolt
 * Way Big (first appearance, unlocked by Azmuth)

Alien Forms Unlocked

 * Way Big (unlocked by Azmuth)

Errors

 * When Ben and Gwen are fighting aliens on Incarcecon, right before the Tetramand destroys Tetrax's hoverboard, the Omnitrix is missing from Ben's wrist.
 * When Azmuth is re-inserting the Omnitrix dial, the "tower" of the dial is grey and green, instead of the standard black and green.

Trivia

 * Since Man of Action revealed that this episode take place after Ben 10 vs. the Negative 10: Part 2, this is the last canon episode of the original Ben 10 series. This means we haven't seen the canon ending to Ben's summer.
 * Ironically, the Omnitrix self-destructs five years later, in The Final Battle: Part 2.
 * In the Polish version of this movie, Gwen said "Heatblast!" to Ben, who was XLR8.
 * When Ben runs away from a few Vilgax's Drones, of an unknown type, in the asteroid belt of Xenon, resembles the level 2 of "Small Path" in the classic game "Starfox 64", named "Into the Asteroid Field".
 * The drones also remind some enemies in the same level.