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

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

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.

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.