Prisoner Number 775 is Missing

Prisoner Number 775 is Missing is the eleventh episode of the third season of Ben 10: Ultimate Alien, and the thirty-first episode overall.
==Synopsis==
When old George enters Area 51 and makes the entire base disappear, Ben and the crew learn that a mysterious Prisoner 775 may be behind it all.
==Plot==
This episode starts with Sir George walking towards Area 51 and approaching two guards. While the guards try to politely get rid of him, Old George, with surprising strength, knocks them out and goes inside Area 51, where a bright light shines, making the base disappear.
Meanwhile, Swampfire, Gwen, and Kevin are roasting hot dogs at a campfire, during which Swampfire explains that he shouts the names of his aliens to spread fear into his foes. Max gets a call from Cooper about Area 51's disappearance. They decide to go to Area 51 to investigate what happened. Max, Ben (after he transforms back into normal), Gwen, and Kevin arrive at Area 51 and meet with Cooper and Colonel Rozum, and according to Cooper, there are no signs that the base was destroyed or teleported away, it just disappeared. They go down to the crater, where the base was and find a Level 3 tech floor, where Colonel Rozum reluctantly explains it is part of a holding facility for alien combatants that has been held up to the past 50 years.
Ben transforms into Big Chill to investigate under what is there, while Max and Rozum argue over the conditions. Off-screen, Big Chill finds a bunch of trapped aliens in cells, with exactly 774 aliens, and returns to the surface to tell Max what he found. Colonel Rozum says that there is supposed to be 775 aliens, just as an invisible lizard-like alien boards Cooper's Plumber ship and attempts to escape with it. Ben transforms into Rath and uses his claws to cling onto it to catch the escaped prisoner, but eventually falls off.
Rath survives and transform back into Ben. Meanwhile, the damaged Plumber ship managed to land on a dock. The team finds the ship empty but by crashing and abandoning it the prisoner accidentally set it to self-destruct. Kevin tries to deactivate it but speeds up instead. Ben transforms into Echo Echo and produces an army of clones that throws the ship into the lake, but the lake is too shallow, and the ship blows up, but Gwen protects them with a mana force field.
They head into a town where they find a downed guard, who explains that he was overpowered by the alien and when he begged for mercy, the alien asked if he had a family. When the guard said "yes", the alien just left him. The team hears the alien attacking nearby and goes after him. Ben transforms into Humungousaur, and he and the group fight Prisoner 775. After Gwen traps him in a mana sphere, he says that 50 years ago he was a soldier, fighting a dictator on his homeworld before being exiled to Earth and was captured by the American Air Force. In his absence, his family was killed.
When Kevin suggests that he "even the score", and Ben advises him to seek justice, this ultimately leads him to decide to exact revenge on Colonel Rozum and his family for his imprisonment. He tricks Gwen into letting him free, where the building crumbles around them, but are protected by Gwen's shield. They decide they must stop Prisoner 775 from killing Colonel Rozum and his family.
The group informs Max and Cooper of Prisoner 775's revenge plan and fly to Florida to find Colonel Rozum before he does. However, it is revealed Prisoner 775 hitched a ride on the Rustbucket 3 and runs away. Ben transforms into Wildmutt to track him. 775 finds Rozum's house and hesitates to attack when he sees his wife and a child but is suddenly attacked by Wildmutt and the group.
When 775 seems too stealthy to take on and when he is about to kill Rozum, Wildmutt evolves into Ultimate Wildmutt and stops him, but 775 begs for Ben to kill him so he can be reunited with his family and cries over their deaths, shocking Rozum.
Spared, Prisoner 775 is then taken by the Plumbers while Ben reverts to normal and scans his DNA and unlocks its transformation. Ben transforms into Chamalien, while Gwen and Kevin walk away with Chamalien following them. With the mess resolved, Max takes the opportunity to chew out Rozum, saying that he can use whatever justification helps him sleep at night, but the simple fact remains if he had shown simple mercy to 775 and followed proper procedure all those years ago, he would have prevented the destruction wrought today and the reckless endangerment of Rozum's family and the lives of others.
==Noteworthy Events==
===Major Events===
*Ben obtains a new DNA sample, Chamalien.
====Character Debuts====
*Mrs. Rozum
*Colonel Rozum's Baby
*Prisoner 775
====Ultimatrix Alien Debuts====
*Ultimate Wildmutt
*Chamalien
===Minor Events===
*Area 51 is introduced and shown to be an alien prison, which is illegal under interstellar law.
*It is revealed that Ben shouts his aliens' names to insert fear into his enemies.
*Ben is revealed to have at least five playlists of alien forms currently active. 
==Characters==
===Main Characters===
*Ben Tennyson
*Gwen Tennyson
*Kevin Levin
===Supporting Characters===
*Max Tennyson
*Cooper
*Colonel Rozum
===Antagonists===
*Prisoner 775 (first appearance)
===Other Characters===
*Old George
*Mrs. Rozum (first appearance)
*Colonel Rozum's Baby (first appearance)
==Aliens Used==
*Swampfire
*Big Chill
*Rath (selected alien was Humungousaur)
*Echo Echo (intended alien was Humungousaur)
*Humungousaur
*Wildmutt
**Ultimate Wildmutt (first appearance)
*Chamalien (first appearance)
==Quotes==
==Naming and Translations==
==Cast==
==Continuity==
*The truth about Area 51 being an alien prison was actually revealed much earlier on in the series by Lieutenant Steel in Framed. 
==Allusions==
*Castrodinium, the material absorbed by Kevin, may be named after Fidel Castro, a former leader of Cuba, wherein Guantanamo Bay is located.
*Wildmutt's transformation sequence in this episode resembles his transformation sequence from the Original Series.
==Errors==
*Old George throws part of the barrier at one officer, but when he walks away, it's on the other officer.
*Big Chill and Chamalien's holograms face away from Ben.
*Prisoner 775's strength rapidly changes throughout the episode.
*Before Ben transforms into Echo Echo, the Ultimatrix's core pops up without Ben touching it.
*Echo Echo merges his clones into one by pressing the Ultimatrix symbol.
*While Echo Echo runs away from the exploding Plumber ship, his body is incomplete and his Ultimatrix symbol is cut off.
*When Ben's team picks up the sheriff who was knocked out, his badge changes from grey to gold.
*When Kevin absorbs his car, his fingers are on the glass, yet he still gains a metallic layer.
*After Humungousaur fights Prisoner 775, the position of Prisoner 775's spots is reversed.
*When Prisoner 775 slips from Gwen's mana shield, the outlines of his teeth are the same color as his skin.
*When Gwen shields Prisoner 775, Kevin shifts between his normal form and his metal form.
*When Wildmutt tracks Prisoner 775's scent, he grows four extra nostrils instead of using his existing nostrils.
*When Prisoner 775 looks through the window of Colonel Rozum's house, it shows Mrs. Rozum holding their baby who only has a white blanket over him, but a few shots later, the baby is chewing a blue pacifier in his mouth.
*When Prisoner 775 says "Leave me be, I intend to balance the scales", the colors of his eyes are reversed.
*When Gwen says "No, no, no! Behind you!", the "Rozum" plate on the mailbox behind her faces the house instead of facing away from it.
*When Ultimate Wildmutt holds Prisoner 775's tail, his upper lip isn't black.
*In one shot, one of Ultimate Wildmutt's teeth has the same color as his tongue.
*Ultimate Wildmutt reverts to Ben without reverting to Wildmutt first.
*One of the Plumbers' neck is covered with his suit at one point.
*When the Ultimatrix says that Merlinisapien DNA is available in Playlist 5, it is colored darker.
PN775IM (14).png|Wrong officer
PN775IM (93).png|Hologram error
PN775IM (201).png|Echo Echo's hologram
Error contour.png|Incomplete body
PN775IM (224).png|Golden badge
PN775IM (234).png|Absorption error
PN775IM (265).png|Reversed spots
PN775IM (283).png|Teeth outlines error
PN775IM (301).png|Metal form
PN775IM (303).png|Human form
PN775IM (377).png|Extra nostrils
PN775IM (393).png|Pacifier
PN775IM (400).png|Reversed eye colors
PN775IM (411).png|Mailbox error
PN775IM (446).png|Lip error
PN775IM (451).png|Tooth error
PN775IM (466).png|Black neck
PN775IM (468).png|Ultimatrix error
PN775IM (469).png|Hologram error
==Trivia==
*The episode's title is listed as Prisoner #775 Is Missing on the back of Ben 10 Ultimate Alien: The Wild Truth DVD, the Cartoon Network website and iTunes, and as Prisoner No.775 is Missing on Amazon Prime Video. Peter David referred to it as Prisoner Number 775 is Missing, which is how it is shown within the episode itself.
*It is revealed that Gwen and Kevin find Rath the most entertaining and amusing alien to see in action.
*This episode was written as an intentional reference to Guantanamo Bay, a subject that made Dwayne McDuffie furious.
*Cooper was not intended to appear in this episode. In the original script, a nameless Plumber was supposed to be in his place. Peter David was not aware that this was changed until the episode aired.
==References==
===Official Ben 10 Facebook Page===
===Cartoon Network===
===Peter David===
es:El prisionero 775 no está
pl:Zaginięcie więźnia numer 775
pt-br:O Prisioneiro Número 775 Sumiu
ro:Prizonierul cu numărul 775 lipsește
Category:Episodes
Category:Ben 10: Ultimate Alien Episodes
Category:Episodes Directed by Dan Riba
Category:Dagon Arc
Category:Ben 10: Ultimate Alien Season 3 Episodes
Category:Episodes Aired Out of Production Order