1. The Nightmare Begins
Aired: Mar 30, 2001 Unqualified and delinquent alien ZIM is sent on a (thought to be) hopeless mi...
2. Bestest Friend/Nanozim
Aired: Apr 6, 2001 Zim gets an annoying best friend and Zim shrinks himself to a microscopic siz...
3. Parent Teacher Night/Walk of Doom
Aired: Apr 6, 2001 Zim is worried his robotic parents aren't ready for Parent Teacher Night and ...
4. Germs/Dark Harvest
Aired: Apr 13, 2001 Zim studies germs and then steals his classmates' internal organs.
5. Attack of the Saucer Morons/The Wettening
Aired: Apr 13, 2001 Zim has to salvage his Voot cruiser after colliding with a bee and crashing /...
6. Career Day/Battle-Dib
Aired: Apr 20, 2001 Zim gets a job in fast-food and Dib tries to get on TV to tell all about Zim.
7. Planet Jackers/Rise of the Zitboy
Aired: Apr 20, 2001 Zim uses his hypnotic zit to try and get a secret out of Dib.
8. Invasion of the Idiot Dog Brain/Bad, Bad Rubber Piggy
Aired: Apr 27, 2001 Gir messes with the security features of ZIM's house. Also, ZIM uses a time m...
9. A Room with a Moose/Hamstergeddon
Aired: Apr 27, 2001 ZIM implements his most horrific plan yet, a room with a moose. Also, ZIM use...
10. Plague of Babies/Bloaty's Pizza Hog
Aired: May 4, 2001 ZIM suspects that a neighbors baby is spying on him, and he may be right for ...
11. Bolognius Maximus/Game Slave 2
Aired: May 4, 2001 Zim infects Dib with a genetic virus which slowly turns him into bologna. / G...
12. Halloween Spectacular of Spooky Doom
Aired: Aug 17, 2001 Experimenting with alternate dimensions, Dib and ZIM get stuck in a nightmare...
13. Mysterious Mysteries/Future Dib
Aired: Aug 17, 2001 ZIM, Dib, GIR and Gaz appear on Dib's favorite show, Mysterious Mysteries / Z...
14. Door to Door/FBI Warning of Doom
Aired: Aug 24, 2001 ZIM becomes obsessed about winning the mystery prize in The Skool candy drive...
15. Battle of the Planets
Aired: Aug 24, 2001 ZIM discovers that there is no life on Mars and reasons that whatever destroy...
16. Abducted/The Sad, Sad Tale of Chickenfoot
Aired: Aug 31, 2001 ZIM is abducted by some very stupid aliens who mistake him for human / Dib tr...
17. Megadoomer/Lice
Aired: Aug 31, 2001 ZIM receives a top-notch Irken weapon by mistake and tries to use it to destr...
18. TAK: The Hideous New Girl
Aired: Sep 7, 2001 ZIM thinks the new girl in school, TAK, has a crush on him. He couldn't be mo...
19. Dib's Wonderful Life of Doom/GIR Goes Crazy and Stuff
Aired: Sep 7, 2001 Dib is given powers beyond human comprehension, and Zim tries to discover who...
20. HOBO 13/Walk for Your Lives
Aired: Sep 21, 2001 The Tallest tell ZIM that they will only grant his request for weaponry after...
21. Game Slave 2
Aired: Sep 21, 2001 When Gaz sees an advertisement for the new handheld gaming console, the Game ...
22. Halloween Spectacular of Spooky Doom
Aired: Oct 26, 2001 It’s Halloween and the entire town is getting into the Halloween spirit; much...
23. Mysterious Mysteries
Aired: Mar 22, 2002 When Mysterious Mysteries is having trouble in ratings due to their lack of s...
24. Future Dib
Aired: Mar 22, 2002 Professor Membrane has just unveiled a world changing machine that will compl...
25. Door to Door
Aired: Mar 29, 2002 The skool is holding a candy drive in order to get some finances, in which th...
26. FBI Warning of Doom
Aired: Mar 29, 2002 Gir has recently been watching a movie he rented from the local mall, in whic...
27. Battle of the Planets
Aired: Apr 5, 2002 When Zim goes to Mars to attempt to find a way to destroy the Earth, figuring...
28. Abducted
Aired: Apr 12, 2002 When Zim is attempting to explain to the Almighty Tallest that the humans are...
29. The Sad, Sad Tale of Chickenfoot
Aired: Apr 12, 2002 When Professor Membrane invites some of his colleagues over to the house, the...
30. Megadoomer
Aired: Apr 26, 2002 The Almighty tallest are examining a storage planet in order to send valuable...
31. Lice
Aired: Apr 26, 2002 When at skool one day, a child comes into class late because his head was itc...
32. TAK: The Hideous New Girl
Aired: May 10, 2002 An Irken masquerades as the new girl at school in order to settle an old scor...
33. GIR Goes Crazy and Stuff
Aired: May 24, 2002 When Zim attempts to taint the Earth’s cow-meat supply with sewer water is ru...
34. Dib's Wonderful Life of Doom
Aired: May 24, 2002 While at school one day, Zim throws another fit about the lunch food so Dib t...
35. Hobo 13
Aired: Jul 12, 2002 When Zim’s constant requests to the Tallest get on their nerves, they attempt...
36. Walk for Your Lives
Aired: Sep 28, 2002 During Probing Day, the day where the Tallest evaluate the Invaders’ performa...
