Mr. X

"Mr. X" is the first segment of the sixth episode of the third season of Amphibia, and the eighty-fifth episode overall.

It premiered on November 6, 2021, alongside "Sprig's Birthday".

Synopsis
Anne takes the Plantars to the movies, while the Boonchuys try to stop a government agent from finding them.

Plot
The episode begins with 2 Federal Bureau of Investigation (FBI) agents Mr. X and his assistant, Jenny, are investigating the Plantar family and discover that they are definitely possibly aliens and someone is helping them. Then, they start to get hungry and Jenny found Thai Go online as the best location they can go to eat.

Meanwhile in Thai Go, thinking that there is nobody after them now that they have destroyed Andrias' robot, Anne decides to take the Plantars to see a movie in a theater. Anne's parents are still euphoric after helping their daughter and her friends fight the Cloak-Bot so they are eager and willing to help out again if anything comes up. Which is a good thing since Mr. X is already hot on their trail and heading to the family's restaurant.

Anne and the Plantars arrived at Super Cinema 40, and it's immediate sensory overload. Back at the restaurant, Mr. X is questioning Mrs. Boonchuy, asking if she's seen some creatures before showing her a surveillance picture of the Plantars.

Mrs. Boonchuy obviously recognizes them but tries to play dumb and asked who's looking for them anyway, before being told that the Federal Government is the one looking for them. Just then, Jenny comes in with a computer showing they've been spotted with the human string bean (Anne) and they immediately leave for the restaurant, but not before handing Mr. X his food order and they head of to the theater.

Anne's parents try and call her, but due to the loud noises of over twenty minutes of movie trailers, they miss the call so her parents now have the chance they were looking for again, to jump into action and go save their daughter and her friends.

A chase ensues through the traffic of Los Angeles as both parties head to the movie theater, but Mr. X gets there in time to intercept the group as they come out of their film. They sneak into another screening, and Mr. X follows them in and sits down behind them, asking if they're from the area or just visiting. Immediately giving themselves up, the group screams and runs through the theater in another chase sequence.

They try to leave the building, but Jenny is at the door scanning everyone who is leaving so the group is now cornered in the multiplex. The group makes their way into a storage closet where old movie posters and cardboard displays act as decoys and are able to get away from Mr. X before taking refuge in a nearby restroom stall.

Mr. X, however, has called in backup which FBI agents surround the building and make their way into the theater during that night. As the FBI agents planning to attack and make their way out, the power goes out.

The lights kick back on, and Mr. X is embarrassed and laughed at by the other FBI agents to discover 2 pet store frogs and a tadpole sitting in the restroom stall. Turns out, Anne's parents, using a particular set of skills (or lack there of) were able to help out.

But after their explanation, they couldn't figure out how her parents knew where they were before they admitted to putting a tracking device with tapes on Hop Pop's chest. That shocked Anne very much and Polly ripped the tracker off Hop Pop's chest which he screamed in pain.

Cast

 * Brenda Song as Anne Boonchuy
 * Justin Felbinger as Sprig Plantar
 * Bill Farmer as Hop Pop Plantar
 * Amanda Leighton as Polly Plantar
 * Brian Sounalath as Mr. Boonchuy
 * On Braly as Mrs. Boonchuy
 * RuPaul as Mr. X

Additional voices

 * Matt Braly as Trailer Narrator
 * Eden Riegel as Ice Cream Kid, Scanned Kid, Bathroom Woman
 * Lakkhana Narksiri as Grandma Boonchuy
 * Roger Craig Smith as FBI Agent 1, FBI Agent 3
 * Troy Baker as Scanned Blonde Man, FBI Agent 2, FBI Agent 5
 * Jeff Bennett as FBI Agent 4

Mentioned

 * King Andrias
 * Cloak-Bot

Pictured

 * Constance
 * Hunter
 * Alastair

Other characters

 * Jenny
 * Domino

Trivia

 * This episode marks Mr. X's formal debut. He was mentioned at the end of the episode "Anne-sterminator".
 * This is the first appearance of Anne's grandmother. According to Lakkhana Narksiri, she is the mother of Anne's mom.
 * This episode has the shortest title out of all the episodes in the series thus far.

Revelations and significant events

 * Mr. X discovers the true identity of the Plantars as frog people.
 * It's revealed that Mr. and Mrs. Boonchuy put a tracking device on Hop Pop's chest while he was sleeping.
 * According to Mrs. Boonchuy, Mr. Boonchuy drives like an old man.

Continuity

 * This episode takes place immediately after "Anne-sterminator".
 * The events of this episode are also mentioned.
 * A poster of Suspicion Island 2 can be seen at the cinema, as well as cardboards of the characters Hunter and Constance.
 * Cuts of the characters from Love Choice can be seen.
 * The search engine Doogle (Parody of Google) is used again.

Allusions

 *  - The poster promoting the movie Cheerleader Musical 7 is a reference to the famous Disney Channel franchise.
 *  - The statue promoting the movie Fast Rat is a reference to the famous video game character and 2020 Paramount film adaptation. Additionally, the tagline reads "I require acceleration", which references Sonic's tagline, "Gotta go fast". Also, the display of Fast Rat resembles the previous version of Sonic before receiving a redesign due to backlash.
 *  - Mr. X stating that a human keeping aliens safe is "80's movie junk" is a nod to the film, which also has the government capture an alien species from another world.
 * Thomas the Tank Engine - A movie poster for a film called Trains with Faces can be seen when Anne and the Plantars exit the theater, referencing the famous tank engine. The same poster appears when Mr. X finds them.
 *  - Jenny has a rare Doogle puzzle piece by their PC.
 * Google Maps - The site Jenny uses is like Google maps.
 *  - One of the movie posters is titled Spy Guy 12 appears. This may be a reference to the franchise.
 *  - The character featured in the poster strongly resembles Carl Fredricksen from the titular movie.
 *  - One of the movie posters is titled Boss Dog, which may be a reference to this movie.
 * - The letters DT&A that appear on the top of Anne's phone screen parody the cellular phone service.
 *  - The letters, D, T, & A are the initials for the studio behind the show.
 *  - The head on Mr. X's ice cream truck looks like the CEO of Jack-In-The-Box, a western popular fast food chain.
 *  - A note in the kitchen at the Boonchuy residence room reads, Ub-r Order in green marker, which is a parody of the online food delivery service.
 *  - One of the movie posters is a squirrel-centric parody of his iconic debut short Steamboat Willie.
 *  - One of the movie posters is titled called Spider in Your Home, which may be a homage to all of the Spider-Man movies in the Marvel Cinematic Universe having the word "Home" in their titles.