Foster's Home for Imaginary Friends

Mac and the other friends start a car wash to pay for a porcelain poodle that Bloo broke. To help, Bloo throws mud at every car that goes by to get more customers.

Frankie goes to a mechanic to find out about the bus, which had broken down, and everyone wants to come along, slowing her down.

Frankie tells Bloo that static electricity can be produced by rubbing socks together. After learning this, he zaps Frankie, then Wilt, then both Wilt & Frankie at the same time. Running through the halls, he zaps Madame Foster, Coco and Jackie Khones. He tries to zap Mr. Herriman, but nothing happens. Bloo "re-charges" by rubbing onto the rug, a towel, an imaginary friend, and two socks. After that, he gives Eduardo a big zap. But in the end, Bloo zaps himself while trying to get the door open for his package.

Mac sends Bloo to live at Foster's Home for Imaginary Friends after being told by his mother that he is too old to have an imaginary friend. Once they meet various residents and get to know Wilt, Eduardo, Coco as well as the home's staff, the problem arises as they realise Bloo may get adopted if he moves in.

An evil imaginary friend sets a sinister plot in motion against Bloo, and Mac and the home's residents must save him.

Mac races to save Bloo from the sinister scheme of the evil imaginary friend.

Mac gets the gang to join a bowling team, but ends up getting booted off.

All Wilt wants to do is watch a basketball game on TV, but the house's ridiculous requests and Wilt's inability to refuse to let them keep him from seeing the big game. This also reveals his dark secret: He can't say no to helping others unless he wants to have a panic attack.

A new imaginary friend has come to Foster's, but he keeps misbehaving all around the house. All other imaginary friends are taking the blame, until Bloo comes up with his master plan.

Eduardo runs away from the Home to prove his bravery, but ends up over his head in a fight.

Bloo gets a nasty case of the hiccups and must get rid of them before the big Imaginary Friend Pageant.

A camping trip becomes a problem when Bloo eats all the food.

When a large and dangerous imaginary friend is destroying the city, a superhero friend named Imaginary Man comes and saves the day, leaving Mac impressed. But once Mac becomes Imaginary Man's sidekick, Bloo becomes jealous and joins forces with Nemesis, Imaginary Man's mortal enemy and sister.

The residents prepare for the annual house photo. Meanwhile, Bloo, Mac and Goo search for an answer behind a weird photo of Foster's taken years ago, Eduardo gets an "extreme makeover" from Duchess, Coco realizes she needs to lose weight and Wilt has trouble being in the house photo without getting his head obscured.

When the home's residents go to the beach and leave Bloo in the house alone on purpose so that he doesn't ruin the fun, he and Mac try to squeeze in as much fun as possible and make it the best day of their lives.

Bloo is convinced that Cheese is an alien after watching a sci-fi movie about brain-eating spacemen and reading a tabloid newspaper with a picture that has an alien that resembles him and attempts to send a message to outer space.

The gang goes to a swap meet where a pick-pocketer is stealing money. He accidentally loses a $100 bill that Eduardo finds. Eduardo takes his money around the swap meet, looking for something to buy. But even the most sensible of the gang are tempted by the bill, and with the thief also trying to catch his bill, craziness ensues.

When the whole house goes to a fair, Mac and Bloo compete to see who will throw up last on a ride called the Vomit Comet. Bloo ditches Mac to ride in Madame Foster's Firebird, but a "quick" stop at the fabric store that is just across the street from the fair suddenly turns into a nightmare for Bloo that doesn't seem to end, causing him to take big measures to try to get out of it.

Mac discovers that an impostor has been checking out library books in his name and hires a detective to find the crook.

Coco escapes from Foster's, and a chain of events has her on adventures all over the world.

A termite infestation at Foster's forces Mr. Herriman to move the friends into a hotel for the night. While at the hotel, Bloo, being rambunctious, gets out of hand, disobeying all of Mr. Herriman's rules. To get rid of him, Wilt, Eduardo, and Coco play a prank on Bloo, though Mr. Herriman believes Bloo did it. Bloo, angry at Coco, challenges her to a prank war, turning the night into an outrageous chain of pranks.