Prisoner Number 775 Is Missing

Prisoner Number 775 is Missing is the 32nd episode of Ben 10: Ultimate Alien and its the twelfth episode of the second season.

Plot
Old George attacks Area 51 using surprising strength he knocks out one guard and potentially kills another then walks into the facility and makes it disappear leaving behind a massive crator where the building use to be. Ben, Gwen, Kevin, Max, and the recently graduated Cooper comes to the site of the base to investigate and discovers that there are no signs the base was destroyed or teleported away it just disappeared.

The Team discovers underground extention of the base made with level three tech, Colonel Rozum is forced to reveal that the underground facility is a prison for aliens being held up to the past Fifty years on suspicion of being a threat to planetary secuity. When ordered to open the prison Rozum explains that it wasn't designed to be opened. Instead Ben uses Big Chill to phase into the prison.

Major Events

 * Ben first transforms into ChamAlien and Ultimate Wildmutt
 * We learn why Ben shouts out his aliens' names.
 * We learn of Area 51.
 * Cooper have the suit of Plumbers
 * Old George returns

Ultimatrix Alien Debuts

 * ChamAlien
 * Ultimate Wildmutt

Characters

 * Cooper775.jpg Tennyson
 * Gwen Tennyson
 * Kevin Levin
 * Max Tennyson
 * Cooper Daniels
 * Colonel Rozum

Villains

 * Old George
 * Prisoner 775 (Main villain of the episode)

Aliens Used

 * Swampfire
 * Big Chill
 * ChamAlien (first appearance)
 * Rath (Accidental transformation selected alien was Humongousaur)Chamalien.jpg
 * Echo Echo (Accidental transformation selected alien was Humongousaur)
 * Humongousaur (Ben said Goop so the Ultimatrix would mess up and turn him into Humongousaur)
 * Wildmutt
 * Ultimate Wildmutt (first appearance)

Errors
Swampfire has fangs.

When Ben turned into ChamAlien at the end, he said Overkill instead.



Trivia

 * Area 51 was first mentioned by the Special Alien Capture Team back in the episode Framed.
 * Area 51 is present in the video game Ben 10: Protector of Earth.
 * It appears Cooper has become a Plumber and first episode use his Plumber suit.
 * Ben reveals he shouts out his alien's names to strike fear into his enemies.
 * If you want to see sneak peek, click here http://www.cartoonnetwork.com/video/index.html?episodeID=8a250ab0264718b001264d629fe701b7-
 * It is revealed (or at least more noticeable) that Swampfire has fangs or it could just be an animation error.
 * This is Ultimate Wildmutt's first appearence,
 * This marks the first time Ben succeeded a mis-mistransformation.
 * A running gag in this episode is how ineffective of the name "Overkill" and Ben's aliens being named.
 * This is the first time Gwen yelled an alien's name out.