On a hot day, the Ghostbusters are frustrated with both the heat and the flies that they're failing to kill. They're also bored, since they haven't had a call all week. Meanwhile, Professor Dweeb is driving around the city trying to hunt ghosts with his new invention. Elizabeth is with him, still just as semi-anthropomorphic as she was in the "Slimer" shorts.
He parks outside the firehouse with him and Elizabeth in disguise, then a portal opens in the sky, out of which falls a monster. The monster appreciates some trash, then knocks on the firehouse door. Slimer lets him in, and Dweeb enters disguised as a vacuum cleaner salesman. The Ghostbusters are fooled, but Slimer isn't, then Dweeb tries to suck him up. He sucks up other stuff too, then Peter throws a chair, which blocks the machine, then it sucks up Janine's desk, which pins him to the wall. The machine then sucks the desk up completely, followed by Dweeb's head, who stumbles out of the firehouse.
He gets his head unstuck, then Elizabeth pops out and both of them are grabbed by the monster. He reveals that he's also a ghost and offers to help Dweeb catch Slimer in exchange for freeing the Sleaze (from the "Slimer" short "Don't Tease the Sleaze"), who he reveals to be his brother.
The Ghostbusters and Slimer clean up, and then they get a call, which turns out to be Dweeb and the big ghost lying. The Ghostbusters and Slimer arrive at their destination, a dirty, abandoned area that was abandoned due to the garbage disposal workers going on strike. There, they meet the big ghost, who they try to fire at but they miss and he spits trash bags at them.
Dweeb and Elizabeth go to the containment unit and bait the Sleaze using a rotten sub. Then, Dweeb removes the Sleaze using an invention. Back at the abandoned area, the Ghostbusters are still failing to bust the big ghost, who they note is similar to the Sleaze, and who then kidnaps Slimer. Egon then sees a light flashing in the Ecto-1, which he explains means there's a breach in the containment unit.
Egon and Ray head home while the others look for Slimer, then Egon checks the unit and determines that one ghost was freed. They determine that this is the Sleaze, and his brother is the Glob. They go into Ecto-2 and inform Peter and Winston, and then everyone agrees to meet up at the dump, where Dweeb and Elizabeth are. Dweeb gives the Glob the Sleaze, and Glob gives Dweeb Slimer. The Sleaze grabs Slimer and he and Dweeb have a tug-of-war over him, ending on the ghost brothers locking Dweeb and Elizabeth in a giant birdcage.
Peter and Winston arrive, then the ghostly brothers merge into one ghost, the Slob. They zap him, but then he flies away and brings furniture to life. The Sleaze separates himself from the Glob and then grabs Slimer again, but then Ray and Egon arrive. They attack, but Sleaze crashes the Ecto-2 with a bowling ball.
Then, Winston gets a call revealing that the Slob is attacking Manhattan, so they set off. Meanwhile, Dweeb and Elizabeth have escaped and are driving off to try to catch Slimer again. Egon and Ray, in a plane, determine that the Slob may be immune to proton streams, but the Sleaze and Glob can be trapped individually.
The Ghostbusters force Dweeb to help them by tricking Sleaze into thinking he's caught Slimer. This allows Ray and Egon to trap Glob and Peter and Winston to trap Sleaze. Dweeb then shakes Slimer's hand with a robot arm, that entangles him, then Slimer puts him on a garbage truck.
This episode provides examples of
- Abandoned Area: Dweeb sends the Ghostbusters on a wild goose chase to an area that was abandoned due to the cleaners going on strike and is thus very dirty.
- Amusing Injuries: Elizabeth bites Dweeb multiple times.
- Animate Inanimate Object: The Slob brings a bunch of furniture to life.
- Batman Gambit: Dweeb pretends he's caught Slimer, knowing that Sleaze would try to grab him back.
- The Big Rotten Apple: Downplayed — Glob says, "Nothing like New York in the summer!" referring to the smell of the trash, tying into the "New York is grimy" stereotype.
- Blind Mistake:
- Egon falls over after his glasses are stolen.
- Dweeb falls over when he can't see due to the machine being on his head.
- Comically Missing the Point: When Dweeb says, "Heel, Elizabeth", she bites his heel.
- Continuity Nod: Peter calls Slimer by his "spud" nickname from the movie.
- Cyclops: Glob has one eye on a stalk.
- Did You Just Flip Off Cthulhu?: Peter calls the Sleaze "garbage-head" to his face.
- Distressed Dude: Slimer gets kidnapped.
- Does Not Like Spam: Dweeb apparently finds yogurt "disgusting".
- Drives Like Crazy: Dweeb swerves all over the place when trying to deal with the angry Elizabeth.
- Edible Ammunition: The Slob throws fruit at the Ghostbusters.
- Faint in Shock: Elizabeth passes out in fear of Glob.
- Freudian Slip: Due to Glob having bad breath, Dweeb accidentally says, "hook, line, and stinker" instead of "sinker".
- Friend to Bugs: Slimer actually cheers when the Ghostbusters fail to kill the flies.
- Fusion Dance: The Slob is an amalgamation of the Glob and the Sleaze.
- Heat Wave: The opening shows the Ghostbusters and Slimer struggling to deal with a hot day.
- Hoist by His Own Petard: Dweeb gets tangled in his own robot arms at the end.
- Idiot Ball: Slimer alone recognises Dweeb in his disguise. Not even Egon, who's usually the smartest and most observant, recognises him.
- Insult Backfire: Dweeb calls Glob repulsive, but Glob sincerely replies, "Thanks, Dweeb".
- Irony: The character who ends up getting rid of Dweeb is Slimer, who he's always trying to catch.
- Meaningful Name: Glob has a slovenly appearance and likes trash.
- No-Sell: While the Sleaze and Glob can be trapped individually, the Slob can't.
- Paper-Thin Disguise: Dweeb "disguises" Elizabeth by putting a wig on her.
- The Pig-Pen: Glob likes hanging around where there's trash.
- Pun:
- Peter says, "Have a seat, Dweeb!" when throwing the chair into the vacuum cleaner.
- Dweeb says that being a scientist "stinks" due to having to deal with garbage and stinky ghosts.
- Say My Name: Slimer yells, "Ray! Egon!" when they get buried under trash.
- Shared Family Quirks: The Sleaze and the Glob are brothers and they have, as Egon puts it, a "mutual affection for garbage".
- Shout-Out: Peter, when sulking about the heat, hopes that the visitor is Frosty the Snowman.
- Slapstick:
- Elizabeth gets sucked into the machine by accident.
- Dweeb ends up sucking up Janine's desk, which pins him to the wall.
- Speak in Unison:
- When Dweeb advertises his "vacuum cleaner", the Ghostbusters say at once, "We don't want any!".
- When Peter says, "That's not a vacuum cleaner salesman; that's Dweeb!", Ray, Egon, and Winston say, "Dweeb?!" in unison.
- Spell My Name with a "The": The Sleaze's brother has a "the" name too — The Glob.
- Tempting Fate: Egon says that only a fool would go ghost hunting in that heat... and then Dweeb is revealed to be attempting to hunt ghosts.
- Theme Music Power-Up: The main theme plays when the brothers get trapped.
- They Call Me MISTER Tibbs!: When the Ghostbusters call Dweeb "Dweeb", he says, "Professor Dweeb to you!".
- This Is Gonna Suck: Winston says a quiet "Uh-oh" when Glob inhales the trash bags.
- Toilet Humour: One of the items the Slob brings to life is a toilet.
- Visible Odor: The smell of the trash and Glob's breath is illustrated as a smoke-like gas.
- Weapons That Suck: Dweeb's machine is intended to suck ghosts up.
- You Need a Breath Mint:
- Dweeb says, "Holy halitosis!" after smelling the Slob's bad breath.
- When the Slob doesn't hit the Ghostbusters, Peter says, "Your aim is as bad as your breath, odour-head!".
