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

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

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

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 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.

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

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

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…

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

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

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

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…

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

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

Mac and the crew win a trip to Europe.

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.

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.

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

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

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

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.

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…

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

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

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

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

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

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…

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…

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

Mac doesn’t want a surprise party.

Bloo and Mac compete in a 30-mile race.

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

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

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

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

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

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