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Invader Zim|]] is an American animated television series|]] that was produced by and aired on Nickelodeon (TV channel)|Nickelodeon|]]. The series revolves around an extraterrestrial named Zim from the planet Irk and his ongoing mission to conquer and/or destroy a dark and satirical version of the Earth|]]. His various attempts to subjugate and destroy the human race are invariably undermined by some combination of his own ineptitude, his malfunctioning robot servant GIR, and his nemesis Dib, one of very few humans not oblivious enough to be unaware of Zim's identity.

Invader Zim was first broadcast on March 30, 2001. The show was targeted at children in their early teens, and met with critical acclaim. However, after the first season the show's ratings[1] began to suffer. Before the second season was completed, Nickelodeon cancelled the series, leaving at least sixteen episodes and a planned Television movie series finale unfinished.[2] Because of its continued fan base and above average DVD sales since cancellation, Invader Zim has been called a Cult television|cult hit|]].[3]

The series consists of a pilot episode, 46 episode segments, and at least 17 episodes that were in production at the time of the series' cancellation. As of August 19, 2006, all 46 episodes have aired on television and been released on DVD. On December 24, 2011 the pilot episode finally aired on television. 38 episode segments were originally broadcast in pairs, each 12-minute episode segment debuting in the same half-hour. There are eight double length episodes. This list is ordered by the episode order in the DVD releases, with broadcast dates noted. Almost every episode was directed by Steve Ressel|]]; the only exception is the pilot, which was directed by Jordan Reichek.

Series overview

Season # of Eps. Originally aired DVD Volume DVD Release Network
Season premiere Season finale Region 1
#Original Pilot|Original Pilot|]] December 24, 2011 1 May 11, 2004 Nicktoons|]]
1|]] 20 March 30, 2001 May 10, 2002 1
2
3
May 11, 2004
August 31, 2004
October 12, 2004
]]
2|]] 7 December 10, 2002 August 19, 2006 3 October 12, 2004 Nicktoons
Nickelodeon (ep 1)

Episodes

Original Pilot: 1999; 2011

Billy West|]] was the voice of Zim (Invader Zim)|Zim|]] for this episode only. This episode was also created as an animation test.[4] Richard Horvitz|]] was chosen for the series role after the pilot was shown to Nickelodeon because West's voice was too recognizable from Futurama|]], according to Invader Zim creator Jhonen Vasquez|]]'s DVD commentary.

As a part of Nicktoon's Winter Funderland, the pilot aired for the very first time on TV twelve years after it was made and seven years after it was first officially released on DVD. Satellite company DirecTV|]] marks the episode's airdate "(2011)", meaning that this special did not air in 1999 as it was rumored. Also, the voice of Zim repeatedly changes throughout the episode, meaning that the voice of Billy West was replaced, however, some of his voice acting is still on the episode at some times.

# Title Written by Original air date
Pilot Pilot Rob Hummel, Ed Scharlach, Jhonen Vasquez & Eva Almos December 24, 2011
Zim finds that he is severely allergic to the school 

Season 1: 2001–2002

# Title Written by Original air date
1 The Nightmare Begins Jhonen Vasquez March 30, 2001 (2001-03-30)
The Irken race is having a great assigning for Operation Impending Doom II, where all Invaders are assigned a planet to conquer. Zim is not invited, as he nearly destroyed the planet Irk during Operation Impending Doom I; yet turns up anyway, and hoping to never deal with him again, The Almighty Tallest send Zim on a fake mission to the edges of their Observable universe 
2A Bestest Friend Rob Hummel, Roman Dirge April 13, 2001 (2001-04-13)
Zim notices that all the other children in the school have friends except him. This is seen as a threat to his all-important mission, as well as a potential exposure of his real identity. He decides that as he doesn't want to appear strange, he must also have a friend. Zim chooses an annoying classmate named Keef to be his best friend and once people have acknowledged that Zim has a friend, he attempts to abandon him. Keef, however, does not take the hint and so Zim must use more drastic methods to dispose of him. Keef tries to throw a surprise party for Zim, which does not come as a surprise on account of GIR, but instead, Zim makes Keef mistake him for a Squirrel. 
2B NanoZIM Jhonen Vasquez & Rob Hummel April 13, 2001 (2001-04-13)
Dib sneaks into Zim's base, takes incriminating pictures of Zim without his disguise on, and puts them on a floppy disk. Zim discovers Dib and shrinks to microscopic size to enter Dib's body via microscopic submarine. Zim accesses Dib's nervous system 
3A Parent Teacher Night Jhonen Vasquez & Rob Hummel April 6, 2001 (2001-04-06)
Parent-Teacher Night is approaching and Zim is confronted with the fact that he doesn't have any parents (Irkens are cloned from a gene bank). He makes use of his robot parents to attempt to fool the students, teachers and parents. However, Zim knows that the Roboparents aren't equipped for such a job. Dib, who brings his dad's communication device, tries to prove that Zim is an alien. The robotic parents malfunction and wreak havoc during the meeting, but nobody discovers that they aren't human or that Zim is an extraterrestrial. 
3B Walk of Doom Jhonen Vasquez & Rob Hummel April 6, 2001 (2001-04-06)
Zim goes on an outing to the downtown area in order to test a new guidance chip he installed in GIR, but when GIR removes the chip before leaving to store a cupcake 
4A Germs Jhonen Vasquez & Rob Hummel April 20, 2001 (2001-04-20)
Zim sees a B-rated movie reminiscent of the 1953 film version The War of the Worlds (1953 film) 
4B Dark Harvest Eric Trueheart & Rob Hummel April 20, 2001 (2001-04-20)
When a columbidae 
5A Attack of the Saucer Morons Jhonen Vasquez & Eric Trueheart April 27, 2001 (2001-04-27)
Zim's spaceship is sent spiralling out of control after an encounter with a Bee and it crash-lands in a park. Zim attempts to recover it, but a UFO-cult 
5B The Wettening Roman Dirge April 27, 2001 (2001-04-27)
During a rainstorm after school, Zim discovers that water (or rather, the pollution 
6A Career Day Rob Hummel May 4, 2001 (2001-05-04)
It's career day at school and Dib has been paired with a paranormal investigator named "Fox Mulder 
6B Battle Dib Jhonen Vasquez & Eric Trueheart May 4, 2001 (2001-05-04)
Dib desires to do a presentation about Zim for a meeting of the Swollen Eyeballs, a secret society which attempts to track down aliens and other such paranormal beings. However, the society requires that he must have a permission slip signed by his father, Professor Membrane, before he can do this. Professor Membrane is very famous, so he has a television show and Dib must endure various trials (including a Mad Max: Beyond Thunderdome 
7A Planet Jackers Rob Hummel & Jhonen Vasquez August 31, 2001 (2001-08-31)
Zim is spying on the other Invaders, checking on their progress via a Hubble Space Telescope 
7B Rise of the Zitboy Frank Conniff & Roman Dirge August 31, 2001 (2001-08-31)
Zim is experimenting one day when Dib tries to sneak into his base in a ceramic Squirrel costume. Zim sees through this disguise and kicks him out, but not before learning that Dib has found a weakness in his security system. This is confirmed by a pizza boy walking straight through his robot 
8A Invasion of the Idiot Dog Brain Jhonen Vasquez & Rob Hummel August 24, 2001 (2001-08-24)
During maintenance of Zim's underground base, GIR's brain is accidentally put into the house's operating system 
8B Bad, Bad Rubber Piggy Eric Trueheart August 24, 2001 (2001-08-24)
By using a time portal device, Zim hopes to make a Hunter-Destroyer machine travel back in time and kill Dib when he is a small child so he can't interfere with his plans in the future. The device is simple: throw in an object from the present and it will swap it with a selected object from the past. However, Zim discovers that the Hunter-Destroyer is incompatible with the time portal device. Out of frustration 
9A A Room with a Moose Jhonen Vasquez & Rob Hummel August 17, 2001 (2001-08-17)
After reminiscing about his mistreatment at the hands of his schoolmates, Zim orchestrates a fake field trip 
9B Hamstergeddon Eric Trueheart August 17, 2001 (2001-08-17)
Zim's class at school gets a new Hamster, and Zim decides that its cuteness 
10A Plague of Babies Rob Hummel September 7, 2001 (2001-09-07)
The episode begins with Zim and GIR falling out of the sky in their smoldering Voot Cruiser, which has been presumably damaged by GIR. Zim is headed underground to the repair bay, but fear 
10B Bloaty's Pizza Hog Jhonen Vasquez & Rob Hummel September 7, 2001 (2001-09-07)
Dib goes out to defeat Zim. When Professor Membrane tells Gaz that it's her turn to pick a restaurant to eat at during the Annual Family Night Out (Prof. Membrane is VERY busy), she chooses Bloaty's Pizza Hog. Two hours pass by and when it is time to go and Dib still has not returned, Professor Membrane says this is a family night, so everyone must attend, otherwise he would have to cancel the whole thing and put it off until next year. In order to be in time for the rare family dinner at her favorite restaurant, Gaz tries to persuade Dib to come home via a communicator watch, but her brother refuses listen to her. Dib, still at Zim's base, is captured by Zim and taken to a station orbiting Earth for experimentation 
11A Door to Door Eric Trueheart & Courtney Lilly March 29, 2002 (2002-03-29)
The Skool starts a candy 
11B FBI Warning of Doom Frank Conniff March 29, 2002 (2002-03-29)
Zim gets scared after finding an "FBI Warning" on the movie GIR keeps watching. Zim takes the DVD back to the mall. However, it is closed, but that doesn't stop Zim. After Zim gets in, Sergeant Slab Rankle catches him, takes the DVD, and puts him in a cell with everyone else who breaks rules. Zim escapes with the help of the prisoners, and steals back the DVD to take it to the Video store 
12A Bolognius Maximus Jhonen Vasquez September 21, 2001 (2001-09-21)
Dib throws bologna at Zim during the lunch break at school, which dissolves his skin. As revenge, Zim places a thumbtack 
12B Game Slave 2 Eric Trueheart & Jhonen Vasquez September 21, 2001 (2001-09-21)
Gaz is in line for a newly released hand-held games console when the person behind her, who introduces himself to her as Iggins, tricks the salesperson into giving the final console to him. Gaz is on the trail of this video game fan boy and pursues him to his home where she removes and destroys all the batteries. Desperate for batteries so he can save his game, Iggins heads to the shopping mall. While in the elevator Gaz scares him into handing over the console. She then puts some batteries into it and continues playing. This episode is the second of three episodes not to feature Zim.

The ending was quickly tacked onto the episode because Vasquez says that Nickelodeon protested against killing Iggins. It took several meetings before this ending became a reality 

13 Battle of the Planets Jhonen Vasquez April 5, 2002 (2002-04-05)
Zim sends out probes to planet Mars 
14 Halloween Spectacular of Spooky Doom Jhonen Vasquez & Rob Hummel October 26, 2001 (2001-10-26)
Dib is doing experiment 
15A Mysterious Mysteries Courtney Lilly & Rob Hummel March 22, 2002 (2002-03-22)
Dib goes on his favorite TV show Mysterious Mysteries to tell the world the story of Zim and to share a video of Zim he had filmed. To Dib's surprise, Zim, GIR, and Gaz also appear on the show to tell their sides of the story. They each tell their own versions, which are then performed in reconstructions on the show for the benefit of the viewer. The presenter of the show decides that Dib and Zim are crazy and tells the viewers that nobody will ever know what truly what happened in the video, leaving Zim's cover saved, once again, by the show's character's stupidity 
15B Future Dib Rob Hummel March 22, 2002 (2002-03-22)
Professor Membrane constructs an energy creating device and Zim gets the idea to sabotage 
16A Hobo 13 Eric Trueheart & Danielle Koenig July 12, 2002 (2002-07-12)
Zim requests more powerful weapons but the Almighty Tallest do not want to give them to him, so he is sent to the deadly training planet Hobo 13 to prove he is worthy of the new equipment. Zim, through extreme selfishness and sacrifice of his teammates, surprisingly gets to the end of the trials. The commander, who is appalled at how Zim has acted, decides to take Zim on in a ring-fight 
16B Walk for Your Lives Eric Trueheart September 28, 2002 (2002-09-28)
Zim is doing time 
17A Megadoomer Roman Dirge April 26, 2002 (2002-04-26)
Due to an angry prisoner who sorts packages, Zim is accidentally shipped a high-powered robot with a cloaking device 
17B Lice Rob Hummel April 26, 2002 (2002-04-26)
There is an infestation of head lice 
18A Abducted Jhonen Vasquez & Rob Hummel April 12, 2002 (2002-04-12)
Zim and GIR are alien abduction 
18B The Sad, Sad Tale of Chickenfoot Roman Dirge & Eric Trueheart April 12, 2002 (2002-04-12)
Frustrated at how people see paranormal science, Dib sets out to disprove the urban legend 
19A GIR Goes Crazy and Stuff Eric Trueheart May 24, 2002 (2002-05-24)
Zim is frustrated with how useless GIR is, and puts him in permanent defensive mode. Things start to go wrong when GIR sees Zim himself as a threat to their mission on Earth. GIR escapes to gain more knowledge of the humans so that he can complete the mission. He also tires to zap Zim with his laser 
19B Dib's Wonderful Life of Doom Jhonen Vasquez & Eric Trueheart May 24, 2002 (2002-05-24)
Zim is hit by a muffin 
20 Tak, the Hideous New Girl Jhonen Vasquez & Eric Trueheart May 10, 2002 (2002-05-10)
A new girl at school, Tak, joins the class and "has a puppy love 

Season 2: 2002–2006

The second season of Invader Zim aired in 2002. After the season's first episode, the show was cancelled and the episodes that had been completed prior to the cancellation were not shown. The remaining finished episodes were released on DVD in 2004, and finally aired in 2006 on Nicktoons Network|]]. Season 2 was not completed.

# Title Written by Original air date
21 The Most Horrible X-Mas Ever Jhonen Vasquez & Eric Trueheart December 10, 2002 (2002-12-10)
Zim discovers how much people like Santa Claus 
22 Backseat Drivers from Beyond the Stars Jhonen Vasquez June 10, 2006 (2006-06-10)
Zim desires to bring his masters to Earth to witness his next plan for world domination involving a brain parasite 
23A Mortos Der Soulstealer Eric Trueheart June 17, 2006 (2006-06-17)
Dib summons a mystical beast called Mortos Der Soulstealer to attack Zim and prevent him from taking over the world. Mortos will grant Dib anything he wants, but is tired and requests time and food to regenerate. It soon becomes clear that Mortos just wants to have fun and spends time eating and trying on clothes. Dib confronts Zim with Mortos and demands that he fulfill his request to stop Zim, but Mortos grants a random person's request for ice cream instead, and then returns to his realm to rest. 
23B Zim Eats Waffles Eric Trueheart June 17, 2006 (2006-06-17)
Dib has managed to get a spy camera into Zim's base in the hopes of recording some evidence that will prove he's an alien. Unfortunately for Dib, his hard drive 
24A The Girl Who Cried Gnome Rob Hummel July 15, 2006 (2006-07-15)
A girl selling cookies gets her foot trapped in Zim's front yard and it attracts the attention of the neighbors, press and the Earth president. The girl loves all the attention and won't let anyone simply pull her out. Dib manages to persuade the president to use a digging machine to dig under the girl to get her out. He suggests this because then Zim's base will be discovered. Zim finally decides that enough is enough and simply pulls the girl out of the hole. 
24B Dibship Rising Eric Trueheart July 15, 2006 (2006-07-15)
Dib is again working on Tak's crashed spaceship, which turned on him the last time he activated it because its computer AI is a digital copy of Tak's mind. To stop it from acting so hostile to him he downloads his own personality into the ship. This does not go as planned because the ship then starts to believe that it is Dib. Zim discovers what Dib has done and reminds the ship that it is Irken technology and must do what Zim says. Zim commands the ship to throw Dib into the city sewage plant but the ship remembers that it is Dib, and throws Zim across town. The ship is so depressed that it is "Dib" that it deletes its personality.
Guest star: Olivia d'Abo 
25A Vindicated Danielle Koenig July 22, 2006 (2006-07-22)
Dib sees the school's counselor, Mr. Dwicky, about his problems at school, and Dib tells him about how Zim's an alien trying to take over the Earth. Surprisingly Mr. Dwicky says he believes him and that he wants to help him out. He later reveals to a colleague that this is just a ruse to get Dib to trust him. They trick Zim into thinking aliens are coming to meet him in the woods to give him super weapons but after a while of waiting, Mr. Dwicky reveals he doesn't really believe Dib. At that point some real aliens turn up and offer to take Mr. Dwicky with them. As he loved aliens as a child he jumps at the chance and Dib is left behind with nobody else believing him. 
25B The Voting of the Doomed Eric Trueheart July 22, 2006 (2006-07-22)
Zim decides to use the school's election to gain power, so Dib becomes the manager of his opponent to try and stop him. Zim streaks ahead after making many promises to the students that are crazy, but wins them over anyway. Dib counters this by using a cellphone to feed dialogue to a boy who is opposing Zim so he can debate with him properly. Dib's candidate wins the election, but the school faculty brings him to a lab where they (very painfully) remove his individuality and free will, making him nothing more than a mindless figurehead for the oppressive school. Needless to say, Dib is not pleased, as it would have been Zim who would have met this fate if not for Dib's efforts. 
26 Gaz, Taster of Pork Jhonen Vasquez August 12, 2006 (2006-08-12)
Dib discovers that his electronic spell drives still have two credits on them, which allow him to cast spells. Not knowing what the spells would do, he casts one on his sister Gaz instead to see what would happen. The result of the spell is that Gaz tastes pigs no matter what she eats, apart from hot dogs. Gaz upsets at Dib who decides to go to another dimension to request the spell be undone. Gaz answers three questions correctly to reverse the spell. Dib, however, is stuck cleaning toilets with brushes on his head, as part of a deal he imposed on the creator of the spell. 
27 The Frycook What Came from All That Space Jhonen Vasquez August 19, 2006 (2006-08-19)
While in school, Sizz-Lorr kidnaps Zim and takes him into space. It is revealed that he is an Irken who was previously Zim's jail master before he escaped in the first episode. Zim works in a fast food restaurant on the Irken snacking planet of Foodcourtia but manages to escape before a massive amount of snacking causes the gravity to prevent anyone leaving the planet for 20 years. 

DVD release

For more details on this topic, see Invader Zim merchandise.

47 of 68 episodes (not including the pilot) of the completed Invader ZIM series have been released on DVD, along with the pilot, an alternate cut of The Most Horrible X-mas Ever, and audio from seven of the unfinished episodes. Later, a DVD boxed set including both the seasons was added to the market. This came with a box shaped like Zim's house with a GIR figure, 46 episodes and all 6 DVDs. The last "new" episode aired in 2011.

An "Invader Zim Seasons 1–2" DVD was released on May 4, 2010 by Amazon.com as an on-demand title. These DVDs contain all the episodes, but do not have any commentary or special features.[5]

An Invader ZIM DVD was released on February 22, 2011 titled "Operation Doom", which features the highest-rated episodes of the series.[citation needed]

References

  1. "Mindspill » INVADER ZIM Fact #2". Questionsleep.com. 2010-03-02. http://www.questionsleep.com/mindspill/?p=1229. Retrieved 2012-06-14. 
  2. Adam Tierney (1 September 2004). "An Interview with Jhonen Vasquez and Rikki Simons (page 2)". http://dvd.ign.com/articles/543/543764p2.html. Retrieved 2007-05-08. 
  3. De La Cruz, Edwin (March 28, 2004). "'Invader Zim' invades Home Video". Video Game Magazine 26 (13): 30. http://connection.ebscohost.com/c/articles/12695009/invader-zim-invades-home-video. Retrieved January 25, 2015. 
  4. "Billy West (II)". Internet Movie Database. Internet Movie Database. http://www.imdb.com/name/nm0921942/. Retrieved 2008-02-08. 
  5. "Invader Zim Seasons 1–2". Amazon.com. http://www.amazon.com/Invader-ZIM-Horrible-Holiday-Cheer/dp/B0002T2QGA/ref=sr_1_2?s=movies-tv&ie=UTF8&qid=1324756290&sr=1-2. Retrieved 2012-06-14. 

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Category:Invader Zim|Episodes|]] Category:Lists of American animated television series episodes|]] Category:Lists of science fiction television series episodes|]]

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