Seasons & episodes
S1 · E1The Long Goodbye Syndrome 1997-10-11 · 22 min
While trying to get Skraaldians out of New York sewers, Jay uses his Noisy Cricket on one and kills it. Problem is, all Skraaldians are psychically linked and know what Jay did. And every last one will go after him to settle the score.
S1 · E2The Buzzard Syndrome 1997-10-18 · 22 min
Jay and Kay investigate a crashed alien ship in the woods when they encounter Treblor, an alien cop from the Zombarian Retrieval Department. Treblor says the owner of the crashed ship is a fugitive named Z-Ron. While Jay goes out ahead to get Z-Ron, Kay learns Treblor isn't who he says he is.
S1 · E3The Irritable Bow-Wow Syndrome 1997-10-25 · 22 min
A Charnok has to come to Earth and ransacked Jeebs' pawn shop as well as hunting reliable MIB informant, Frank the Pug. After some investigating, Jay and Kay learn the Charnok was trying to buy a Void Density Core from Jeebs, who didn't want to sell it. Frank made off with it during the fight and accidentally swallowed it. Now the MIB have to get the VDC out of him before it detonates and sucks the city into a miniature black hole.
S1 · E4The Alpha Syndrome 1997-11-01 · 22 min
Investigating the theft of a Sintillian heart, Kay learns the culprit is Alpha, his former mentor and the man who left him for dead years ago. But Jay and Kay discover Alpha now has multiple body parts grafted onto his body, becoming even more dangerous.
S1 · E5The Undercover Syndrome 1997-11-08 · 22 min
Jay goes undercover as a Tarkan bodyguard at an alien conference to protect Dirndl, Trade Minister of Tarka, from an alien assassin.
S1 · E6The Neuralyzer Syndrome 1997-11-15 · 21 min
While trying to stop alien thieves known as Chop Shoppers, Jay's accidental use of the Neuralizer erases Kay's memories and makes him think he is sixteen.
S1 · E7The Symbiote Syndrome 1997-11-22 · 22 min
When Kay is infected with Millicrons, Jay takes his place on an assignment to transport a symbiote named Troy to New York City. He has to do it within twenty hours or be permanently absorbed by Troy. But Buzzard returns and is looking to capture the symbiote for his mysterious boss.
S1 · E8The Inanimate Syndrome 1997-12-06 · 22 min
An Inanimate, a shapeshifter capable of disgusing itself as inanimate objects, escapes from prison to Earth. But the MIB get some help from Eileen, an intergalactic cop that stirs up some old feelings for Kay.
S1 · E9The Psychic Link Syndrome 1997-12-13 · 22 min
An insane Alcidian named Forbus is hunting humans, draining them of their bodily fluids. But during the pursuit, Forbus forms a psychic link with Kay, making him feel whatever he feels.
S1 · E10The Head Trip Syndrome 1997-12-20 · 22 min
Jay mistakes a Cerebro-Accelerator for a pair of head phones, making him the smartest man on Earth. However, this will also cause his brain to explode in twenty-two hours. But his advanced brain is MIB's only hope when someone uses time travel to erase the five founders of MIB from existence.
S1 · E11The Elle of My Dreams Syndrome 1998-01-10 · 22 min
Alien dream eaters known as the Vermax attack the crew of a returning NASA space shuttle. When Jay, Kay and Elle arrive at the landing sight, a Vermax attaches itself to Jay and sends him into a deep sleep. Elle enters Jay's dreams to get him to wake up and remove the Vermax.
S1 · E12The I Married an Alien Syndrome 1998-02-14 · 22 min
The Blastula are increasing the temperature on Earth in their plot to colonize the planet.
S1 · E13The Take No Prisoners Syndrome 1998-05-16 · 22 min
Dr. Lupo and other inmates of MIB's prison ward manage to break out and incapacitate most of MIB. Only Jay and the worms can save the day.
S2 · E1The Little Big Man Syndrome 1998-09-19 · 22 min
The Fmeks are stealing human suits from their enemies, the Arquillians. Jay gets shrunk down to their tiny size to find out what the Fmeks are up to.
S2 · E2The Quick Clone Syndrome 1998-09-26 · 22 min
Jay gets Elle to make him a set of quick clones so he can catch up on some much needed sleep. But while Jay snoozes, Alpha resurfaces and uses one of the quick clones to capture Zed.
S2 · E3The Heads You Lose Syndrome 1998-10-03 · 22 min
Alpha is back and his alien attachments are falling apart. At first, he forces Jeebs to locate new alien body parts for him. But when Alpha discovers Troy the symbiote is at MIB, his plans change.
S2 · E4The Dog Eat Dog Syndrome 1998-10-10 · 22 min
Drekk, an old friend of Frank the Pug, is running loose on Earth. And Frank faces getting boiled alive if he helps Jay and Kay apprehend him.
S2 · E5The Big Bad Bug Syndrome 1998-10-24 · 22 min
The Queen Bug puts out a bounty on the MIB agent that took out dearly departed Edgar. Now Elle is running from some nasty bugs looking to collect the reward.
S2 · E6The Jack O'Lantern Syndrome 1998-10-31 · 22 min
It's Halloween night and trick-or-treating with the worms gets dangerous when Jay comes across an alien that kidnaps children.
S2 · E7The Sonic Boom Syndrome 1998-11-07 · 22 min
A sonic powered alien named Aldoosi escapes from Eileen and her new partner, Eidi. To track this fugitive down, Kay works with Eileen and Jay works with Eidi.
S2 · E8The Bad Seed Syndrome 1998-11-14 · 22 min
Parasites spread by alien seeds take over MIB and threaten the world. As the remaining agents try to stop it, Jay can't keep his mouth shut since he's accidentally been given a truth serum.
S2 · E9The Fmall, Fmall World Syndrome 1998-11-21 · 22 min
Preparing to conquer Earth, the Fmeks break into MIB to get their tiny hands on a growth forumla. They mistake one of the worms to be able to make the formula and capture him.
S2 · E10The Black Christmas Syndrome 1998-12-12 · 22 min
It's up to MIB to save Christmas when Drekk kidnaps Santa Claus.
S2 · E11The Supermen in Black Syndrome 1999-01-16 · 22 min
The Tomassitron Matter Amplifier grants Jay, Kay and Elle super powers as well as three alien criminals, leading to a super showdown.