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.

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.

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.

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.

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.

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

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 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.

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.

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.

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

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.

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.