Season 1
Episode Guide
The Nightmare Begins
S1
E1
On planet Conventia, The Almighty Tallest sends ZIM and robot GIR to Earth in human disguise to plot the planet''s destruction. At school, Dib vows to expose ZIM as an alien.
Parent Teacher Night/Walk of Doom
S1
E2
In order to participate in parent/teacher night, ZIM must use Robo-parents. ZIM and GIR learn "city-life" the hard way in efforts to test their guidance system.
Bestest Friend/Nanozim
S1
E3
ZIM learns that friendship is a fundamental need for humans and befriends Keef. ZIM shrinks himself to use Dib''s body to destroy the stolen incriminating photos of his secret hair.
Germs/ Dark Harvest
S1
E4
ZIM orders a pair of special goggles that allow him to see microscopic germs. ZIM is sent to the school nurse when a teacher thinks he is ill.
Attack of the Saucer Morons/The Wettening
S1
E5
ZIM crash lands the voot cruiser in a field and encounters an alien seeking group. On a rainy school day, Dib uses ZIM''s fear of water to his advantage and starts a water war.
Career Day/Battle Dib
S1
E6
During a career test, Dib learns he will be a paranormal investigator while ZIM is told his future lies in fast food. Dib tries to expose ZIM on TV but needs his Dad''s permission.
A Room With a Moose/Hamstergeddon
S1
E7
ZIM tricks the kids into getting on a bus for a supposed field trip - really a ship heading for a wormhole. ZIM sees the power of cuteness in a class pet and gets a scheming idea.
Invasion of the Idiot Dog Brain/Bad, Bad Rubber Piggy
S1
E8
In a mechanical mishap, GIR becomes part of the security core of the house. ZIM tries to get rid of Dib by sending a destroyer machine back in time to alter his past.
Planet Jackers/Rise of the Zitboy
S1
E9
Planet jackers are stealing Earth and ZIM must save it so he can destroy it properly. ZIM has a massive pimple but figures out a way to use it to get valuable information from Dib.
Plague of Babies/Bloaty's Pizza Hog
S1
E10
ZIM catches Noogums looking at him and is convinced the drooling menace is a spy. Membrane and the kids are going out to eat and GAZ pick''s Bloaty''s Pizza Hog for the occasion.
Bolognius Maximus/Game Slave 2
S1
E11
Dib realizes that ZIM doesn''t eat human food and throws bologna at him to prove that ZIM is an alien. Gaz terrorizes Iggins, who cheated her out of the last hand-held GAME SLAVE 2.
Halloween Spectacular of Spooky Doom Part 1 & 2
S1
E12
Experimenting with alternate dimensions, Dib and ZIM get stuck in a nightmare world on Halloween.
Mysterious Mysteries/Future Dib
S1
E13
ZIM, Dib, GIR and Gaz appear on Dib''s favorite show, Mysterious Mysteries. Membrane invents a machine that could either eliminate the need for fuel or destroy all life on Earth.
Door to Door/FBI Warning
S1
E14
ZIM becomes obsessed in winning the mystery prize for The Skool candy drive. ZIM takes the FBI warning on a video too seriously believing an overdue movie will destroy his mission.
Battle of the Planets of Doom Parts 1 & 2
S1
E15
ZIM discovers that there is no life on Mars and reasons that whatever destroyed its people will be effective in his destruction of Earth. ZIM and GIR head to Mars to investigate.
Abducted/The Sad, Sad Tale of Chickenfoot
S1
E16
Two aliens want to use ZIM as the perfect human specimen. Dib tries to disprove the mystery of "Chickenfoot."
Megadoomer/Lice
S1
E17
ZIM receives an invisible robot with which he hopes to ruin Dib. The Skool is plagued with an outbreak of head lice.
Tak: The Hideous New Girl
S1
E18
ZIM thinks the new girl in school, TAK, has a crush on him. He couldn''t be more wrong.
Gir's Gone Crazy and Stuff/Dib's Wonderful Life of Doom
S1
E19
Sick of his robot''s short attention span, ZIM fixes GIR so that he is always in his serious mode. After chucking ZIM with a muffin, Dib''s life takes a turn for the better.
Hobo 13/Walk For Your Lives
S1
E20
The Tallest tell ZIM that they will only grant his request for weaponry after he attains military training. ZIM accidentally creates a slowly expanding explosion.