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).

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

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.

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.

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.

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A Seeing Eye Friend loses his blind kid, and the gang helps find him. Then Boo becomes popular among Mac's classmates, who imagine their own versions of Boo.

Mac and Bloo meet residents Eduardo, Wilt and Coco, and the home's staff.

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.

Frankie goes to the mall to get a gift for Madame Foster's birthday, but Bloo and the gang tag along and cause all kinds of trouble.

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 breaks Madame Foster's bust, and the gang rushes to put it back together before Mr. Herriman finds out.

Bloo can't find the dining room, and Mr. Herriman won't allow dinner to be served until he arrives.

Mac and Bloo get embarrassing footage of Mr. Herriman while conducting interviews for a Web site.

A new Imaginary Friend named Berry has her eyes on Bloo, and Mac stands between them.

Terrence creates an imaginary friend named Red to beat up Bloo. Then a man in a cellphone costume fools Bloo.

Eduardo breaks the "no dogs in the house" rule.

It's "Adopt-a-Thought Saturday," when imaginary friends can be taken by new families. Mac and Bloo worry that they'll lose all their pals, and take drastic measures to make sure they don't.

Wilt and Eduardo think there's a ghost in the home.

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

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

Wilt wants to watch basketball on TV, but the others don't. Then a new Imaginary Friend misbehaves at the house and everyone else gets blamed.

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

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

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

Bloo breaks a prize squeaking rubber elephant.

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

Bloo becomes a celebrity as a deodorant mascot, but fame taints his relationship with Mac.

Bloo tries to make Mac cool, and succeeds all to well.

Bloo is suspicious of an old "Friend" of the house, Uncle Pockets, who returns after a long absence.

A case of mistaken identity sends Coco and Herriman to a high-society gala.

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.

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.

Mac and the crew win a trip to Europe.

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

Mac and Bloo are imprisoned by evil characters unwittingly created by Goo in her sleep.

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

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

Mac starts to doubt Santa's existence when a hoard of imaginary Santas appear. Bloo sets out to prove that he's real.

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

Frankie faces a tough campaign against Mr. Herriman as they both compete to be president of Foster's.

A single room opens up in the house, prompting Eduardo, Bloo and Coco to compete for it.

Everyone becomes obsessed with card collection when Coco lays magical eggs filled with cards.

Bloo gets jealous when Mac is chosen to be the sidekick of an imaginary superhero friend.

As everyone gets ready to take the annual house photo, Mac and Bloo notice another picture that was taken years ago.

Mac and Bloo have a fun day by themselves in the mansion.

Bloo is teased by a child who lives across the street.

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.

Mac is surprised when Bloo and the rest of the gang show up at his place for a slumber party.

Mac doesn't want a surprise party.

Bloo takes Mac for a secret ride on the Foster's bus.

Everyone gets locked out of the home, and only Cheese knows the code to get back in.

Bloo wants to open his own home for imaginary friends when he feels dejected.

Chaos ensues when a new imaginary friend is created to cheat on a history test.

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.

Wilt runs away in search of his creator after he receives no visitors at the annual picnic, so Bloo and the gang head out to find him and discover some interesting things about Wilt's secret past along the way.

Wilt runs away in search of his creator after he receives no visitors at the annual picnic, so Bloo and the gang head out to find him and discover some interesting things about Wilt's secret past along the way.

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.

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.

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 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".

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 sees a sci-fi movie about extraterrestrials that look like Cheese, so he thinks that Cheese is a brain-sucking alien.

Eduardo finds a $100 bill on the ground at a swap meet, which triggers greed at the Foster house.

Bloo's plan to hurry to the county fair backfires when a shortcut with Madame Foster turns into a trip to the fabric store.

Bloo decides to move into a nursing home after an enjoyable visit there.

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

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.

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 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 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.

Bloo entertains Mac with an action-packed story.

Bloo creates the greatest rock act ever when some Imaginary Friends start a garage band and won't let him in.

Bloo wants to grow up because he thinks Mac is engaged.

Bloo feels torn between Mac and a new student, who is the heir to a paddleball franchise.

Tickets won in a radio contest cause a rift between Mac, Bloo and Frankie.

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!

A prank gone wrong has Bloo trying to outrun an army of zombies.

Eduardo must cover his tracks after telling the nursery residents fibs that could catch up to him.

The gang gets locked out of the house by a new security system, so Peas must discover how to open the door.

A plan to mellow out Mr. Herriman backfires when conditions at the house quickly deteriorate.

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 has a wild adventure.

The Friends start a prank war while staying at a hotel.

The gang posts videos on the Internet after a field trip is rained out.

Bloo and Mac compete in a 30-mile race.

Frankie is tired of working without being thanked. One day, a toy box is discovered at Foster's front door. Frankie is ordered to take it to the attic and leave it alone, but she knows there is an imaginary friend trapped inside, and opens the box to find it. When she looks inside, she falls into a strange imaginary world. There, she gets treated like a princess by a mysterious imaginary friend. After tackling certain bizarre toy box trials and tribulations, Bloo, Mac, Wilt, Eduardo, and Coco discover Frankie's whereabouts and set out to rescue her from this strange world. This is the first and only episode to have a TV-PG rating.

Frankie is tired of working without being thanked. One day, a toy box is discovered at Foster's front door. Frankie is ordered to take it to the attic and leave it alone, but she knows there is an imaginary friend trapped inside, and opens the box to find it. When she looks inside, she falls into a strange imaginary world. There, she gets treated like a princess by a mysterious imaginary friend. After tackling certain bizarre toy box trials and tribulations, Bloo, Mac, Wilt, Eduardo, and Coco discover Frankie's whereabouts and set out to rescue her from this strange world. This is the first and only episode to have a TV-PG rating.

Frankie is tired of working without being thanked. One day, a toy box is discovered at Foster's front door. Frankie is ordered to take it to the attic and leave it alone, but she knows there is an imaginary friend trapped inside, and opens the box to find it. When she looks inside, she falls into a strange imaginary world. There, she gets treated like a princess by a mysterious imaginary friend. After tackling certain bizarre toy box trials and tribulations, Bloo, Mac, Wilt, Eduardo, and Coco discover Frankie's whereabouts and set out to rescue her from this strange world. This is the first and only episode to have a TV-PG rating.

The friends have a house-wide dare competition that quickly gets out of hand.

Recently adopted friends write worrisome letters describing life outside Foster's walls.

A deliriously ill Bloo attends Mac's birthday party and daydreams about his adventures as a superhero.

Frankie and Mr. Herriman host a party at Foster's and ask the friends to stay outside or upstairs.

The friends plan a perfect day for Mac, whom they believe is moving away.