Foster's Home for Imaginary Friends

Bloo tries the old peanut brittle can filled with snakes trick, thinking it as the ultimate Halloween prank after strapping Mac to his bed so as to not allow him to go trick-or-treating because of his sugar rushes. However, when Mr. Herriman tries his trick, Bloo thinks it has gone awry, and Mr. Herriman becomes a zombie, much to the shock of the other residents.

A rich kid named Barry Bling comes to Foster's looking for a friend. He has a mansion filled with toys, which tempts Bloo so much that he starts cheating on Mac. But there's something strangely familiar about Barry...

Bloo is convinced Mac is going to be married, so he tries to act mature in order to impress Mac.

Bloo learns about a garage band known as Pizza Party. After realizing that he cannot be in the band, he starts his own musical act and inadvertently causes the creation of a concert.

Bloo entertains Mac with an action-packed story about a crystal "potato" of power. A little boy (Eduardo), an alien (Coco), a hermit (Wilt), a magical fairy (Frankie), and the Superdude (Bloo) attempt to protect the crystal potato from the evil Lord Snooty (Mr. Herriman), who is taking away all the fun in the land ruled by the Queen (Madame Foster).

Bloo visits a retirement home and inadvertently disguises himself as a senior, getting to live there and being pampered all day long. When Mac finds out about it, Madame Foster teams up with him in order to get Bloo out of there.

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.

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.

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.

Bloo alerts that an imaginary friend is in trouble. No one wants to help him at first because it might be a trick, but Madame Foster forces Frankie, Coco, Wilt, and Eduardo to help him. They find that the imaginary friend is stuck in a tree, and Bloo tries to help by climbing on top of them but only causes them to fall. Madame Foster manages to save the friend and is awarded for her good deed. Bloo tries to prove that he can also do good deeds and makes his own home for imaginary friends.

Foster's is going to be on TV, and Frankie wants everything perfect. Meanwhile, Cheese keeps showing up at Foster's, despite being told numerous times that he doesn't live there. In an attempt to keep him out, Mr. Herriman installs a security system. Unfortunately, due to his misreading of the directions, nobody knows the password except for Cheese, who memorized the code as a song. It is now up to the gang to get Cheese to recite it, and craziness ensues.

Bloo notices after a trip to the grocery store that Frankie has left the keys in the bus, and decides to take Mac for a joyride in the Foster's bus, and Wilt, Coco and Goo promise to keep it a secret much to poor Wilt's disconcern.

Bloo, along with the rest of the house, plan a surprise party for Mac. However, Mac wants no part of it and tries to destroy their plans.

Bloo, Wilt, Eduardo, and eventually more guests arrive at Mac's apartment for a slumber party that Mac didn't plan. But because they are all so loud, Mac's mom or Terrence could wake up and get them all into trouble.

Old Man Rivers, who lives across the street from Foster's, does not want imaginary friends on his lawn, and on "Adopt-A-Thought Saturday," his grandson, Young Man Rivers, makes faces at Bloo. Bloo and Madame Foster throw papers — that are adoption forms — at Old Man Rivers, who keeps them for himself, causing Bloo and Wilt to try to get them back. Meanwhile Eduardo tries to keep the parents busy so Bloo can get the adoption forms, but the parents get more impatient by the moment.

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.

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 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.

Mac and Bloo collaborate on a movie, which turns into a hit. Later, they must make an even better sequel for a film contest.

Although Eduardo is infested with fleas, he soon befriends them, but Frankie and Mr. Herriman want to get rid of them.

Mr. Herriman tries to conceal his carrot addiction, which causes a lot of trouble at Foster's.

The house is filling up with imaginary friends, thanks to a girl named Goo.

Mac and the crew win a trip to Europe.

A suspicious imaginary friend shows up at the house, and Frankie is out to prove him a fraud.

The Duchess is adopted by Mac's neighbors, and the Foster's don't want to take her back.

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

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

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

Bloo is challenged to a fight at the end of the day, but he would rather avoid it.

Bloo breaks a prize squeaking rubber elephant.

When Mac accidentally imagines another friend, Bloo suffers sibling rivalry with the newly arrived and very odd Cheese.

Mac and Bloo fall for Frankie and become wildly jealous of each other and everyone else.

The home needs a new roof, so Bloo tries to fund it with a cookie drive.

Mac takes Bloo to school for show and tell. The kids love Bloo so much that they imagine their own variations on Bloo. Hundreds of Bloo clones are created, and Bloo dubs them his minions and himself leader. Mac plans on going to take Bloo to see The Ice Charades, but with hundreds of Bloos, he can't figure out which is the original.

A Seeing Eye Friend loses his blind kid, and the gang helps find him.

Mac tries to thwart Bloo's plans for a party.

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.

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.

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

Terrence has an idea to make up a friend named Red to beat Bloo up with so he can bully Mac to his heart's content, though the friend he creates ends up friendly instead of mean and violent.

Bloo decides to open the one door at the retirement home for imaginary friends that is never, ever to be opened, and the house becomes infested with something bad.

Bloo and Mac play with each other in the mud while raining, which causes them to get sick. As Mac is taken home by Frankie, Bloo misses out on the scary movie the friends had planned to watch that night. When Wilt, Eduardo, and Coco begin to believe that the ghost in the movie is real, they mistake a pale Bloo to be the ghost. Meanwhile, Frankie gets locked out of the house in the rain after dropping off Mac and, as she tries to get back in, feels she's being stalked.

On Madame Foster's birthday, Frankie realizes she has forgotten to buy streamers for the party, prompting Mr. Herriman to send her to the store. Mac, Bloo, Eduardo, Wilt, and Coco accompany her but wander off in the mall and become involved in various mishaps, slowing Frankie down.

It's Adopt-A-Thought Saturday, an event that focuses on getting good friends adopted on the weekends when children are out of school. Mac and Bloo find out what Adopt-A-Thought Saturday is about after their good friend Jokey gets adopted and spend the day forcing the friends back into the house so that they won't be adopted.

When Mac visits Foster's, Bloo insists on showing him something on the roof, but the two become lost and cannot find their way back downstairs. Meanwhile, in the dining room, the others secretly sneak food while Mr. Herriman insists they wait for Bloo before starting dinner.

Mr. Herriman grows frustrated with Bloo's inability to follow the house rules and threatens to evict him. Under pressure, Bloo accidentally breaks a bust of Madame Foster and attempts to repair it before Mr. Herriman discovers the damage.

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

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

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.

Blooregard plans to play the ultimate trick on Halloween after tying down Mac onto a bed preventing another sugar rush, but when things go awry, most of the main characters of the residence turn into zombies in 3D!

Bloo ruins Mac's hair with gum the day before School Picture Day. Bloo tries to make it up to him but only makes matters worse.

Jackie Khones questions Bloo about Mac's backpack and Bloo becomes obsessed with finding out what's in it.

It's Bloo's birthday, and his cake is being guarded by Mr. Herriman. After being refused to have his cake, Bloo leaves and Frankie comes in and sees Mr. Herriman sleeping on the job. She makes it look like he ate the cake in his sleep and leaves. Mr. Herriman soon wakes up and notices this and thinks he indeed ate the cake, at which point Frankie is yelling for Bloo to come into the kitchen, as they both enter, Frankie sees the cake is gone and scolds Bloo for it and threatens to kick him out. Feeling guilty, Mr. Herriman confesses that he ate the cake, on which both Frankie and Bloo begin to laugh, saying they pulled a prank on him and that the cake is just fine. When Frankie opens the refrigerator to show that the cake is fine, it actually is gone, having been taken by Madame Foster.

Eduardo has a British penpal and Bloo is convinced that it's the Queen of England. He tries to make her his penpal instead by writing her a letter. Mac suggests to use Nancy, an English pen imaginary friend, but Bloo claims it'll make the letter "boring". Mac then suggests a care-package to make her really believe that Bloo cares. Bloo brings in a huge package, but it turns out the penpal was really Nancy. She claims the package is "boring" and she can only use it as a doorstop.

Bloo tries to decipher a message from friends whose vocabulary has only one word each, like Coco. When he figures it out, he doesn't believe it until he realizes it is true.

Bloo finds a strange rock digging in the yard and it is declared to be a fossil by Phineus B. Vurm, the bookworm imaginary friend. Bloo treats it as a pet until Frankie reveals it's actually petrified feces.

Mr. Herriman and Bloo try to out-eat each other in order to claim the toy prize at the bottom of a cereal box.

Eduardo tries to draw a story but Bloo, Wilt and Coco keep interrupting him, drawing their own additions to the story. Frankie interrupts them, revealing that they had been drawing on a wall in the house.

Bloo leaves the fridge open after getting himself a snack, which leads to Frankie telling Wilt to order pizza. Bloo tells him to order five hundred pizzas, at the price of $6532.12. Frankie can't pay that much, so Bloo, Wilt and Ed stall Quinn the delivery boy by sitting on him (because the pizza is free if it isn't there in 30 minutes).

Bloo makes a commercial for Fosters and ends up in trouble when a bunch of people show up because he told them that the first people there in 10 minutes get money and the Fosters bus.

Bloo is determined to win a game of Hide and Seek, so he hides in the trash. Things go awry when a few friends start playing "Kick the Trashbag".

Mr. Herriman tells Bloo to sort the trash for punishment because Bloo hosted a mud-wrestling tournament in the living room. Mac comes along and talks Bloo into pretending it is fun so that other people will want to do it. Soon, he has everybody doing it. Mac tries to tell him that it isn't fun after Bloo refuses to go do something else. He thinks everybody is gonna take the trash for themselves and tells them to get out. Then he realizes it isn't fun without the guys and walks away, until Mr. Herriman comes in and tells him to finish sorting the trash.

Bloo tricks Mac into making crank calls to Mr. Herriman. Their joke is simply blowing raspberries into the phone, redialing again and again. Each time Herriman tries to get back at them by doing the same thing, it isn't them redialing, it's Frankie asking about groceries in the mall. The last call Herriman gets wasn't from Mac and Bloo or Frankie. It was from Madame Foster.

Mac and Bloo have a staring contest and Eduardo tries to talk to them only to think they're frozen solid, consequently getting Frankie to tell him about it. More of the house's residents watch in a bet, as Mac seems to start losing his grip, only to recover it. It is revealed that Bloo was hiding behind a cardboard cut-out of himself.

Bloo tries to make a good recording message for the Fosters Home phone, getting various others to help. Eventually, Bloo gets satisfied with one but Madame Foster plugs too many devices into the same outlet as the phone, fricassing the phone from the overload.

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.

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

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.