Children imagine they're own imaginary friends when they are young, we all know that. You had an imaginary friend when you were little right? But what happens to the friend when it's creator grows up? When he/she doesn't need it any more? Does the poor thing get thrown on the streets? Alone and helpless? Sadly yes. Kids used to throw they're friends on the streets until a kind old woman (yet very enerjetic and full of life) named Madame Foster figured out a solution to this problem. She made an enormous, unbelievabbly big house for imaginary friends, a place they can call home, until someone adopts them.

Among the many, many friends who live in this amazing house is Blooberguard Q. Kazoo a.k.a. Bloo, a hilarious, fun-loving trubble maker who can also be selfish and spoiled and very easily bored sometimes. The creator of Bloo is Mac, your average 8-year-old boy genius who doesn't like breaking the rules and tries (but never succeeds) to keep Bloo out of trouble. Mac and Bloo are best buddies. They really love each-other. In fact Mac never wanted to get rid of Bloo. His mom just thought he was too old to have an imaginary friend so she made Bloo go away. Luckily Mac left Bloo at Foster's Home for Imaginary Friends. Bloo is not up for adoption like all the others. Mac visits him every day at three o'clock after school and they always have wacky adventures together.

Just goes to show: you can never be to old for a friend, even an imaginary one. Madame Foster believes in this too. She still has her Imaginary friend- Mr. Herriman, a tuxido-wearing-rabbit with a british accent who is also head of the house. He is very strict and he strives for order and discipline. Sometimes he goes overboard with the many rules he makes. You can imagine his relationship with Bloo! He also can be a real slave-driver, according to Francis a.k.a. Frankie, the maid and cook of the house.

Frankie is a very hard-working 22-year-old, who loves the imaginary friends, just like her grand-mother Oh and did I mention? Frankie is also Madame Foster's granddaughter. She also doesn't like Bloo because he leaves a big mess and she always has to clean it up. Also she has to get things for Bloo, like soda and chips etc.

Among the other imaginary friends who are Mac and Bloo's friends are Wilt, Eduardo and Coco. Wilt is a VERY tall basketball player who is very sweet and kind. He always (and I mean always!) says "I'm sorry" and "Is that okay?". Eduardo is a purple furry monster who can seem scary at first, but is actually very sweet. Trust me, he is more scared of you than you are of him! Bloo makes fun of him sometimes for beeing a big baby, because he cries about the most random things. Coco is a bird-plane-plant thing who can only say "coco", she can't say anything else. Strangely enough everyone understands her either way! She can lay plastic eggs that you can open. Inside there can be anything! From a bag of popcorn to the Statue of Liberty! She is strange and crazy and thats what makes her so funny. Read the next part to see what will happen to these crazy characters!