Season 1
11 episodes
27 min. per episode
Where to watch
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A boy fights to keep his cherished imaginary friend while navigating the emotional chaos of growing up and letting go.
Episodes
When 8 year old Mac's mother tells him that he's too old for an imaginary friend, he brings Blooregard "Bloo" Q. Kazoo to Foster's Home For Imaginary Friends where he is told that Bloo won't be adopted if Mac visits him every day. Soon after, Mac's older brother Terrence and an evil imaginary friend named Duchess make a plan to try to get rid of Bloo. Mac, with the help of friends named Wilt, Eduardo, and Coco, try to stop them.
Mr. Herriman sends Frankie to the mall to get streamers for Madame Foster's birthday party, and Mac, Bloo, Eduardo, Wilt, and Coco end up coming along. Eventually, they each wander off in a different direction after being distracted by something.
Bloo discovers a door in Foster's that everyone is forbidden to open, and nobody tells him what's behind it. One night he opens it, and releases Scribbles, a friend that does jobs around the house and causes everyone to become lazy.
After Bloo accidentally breaks a statue of Madame Foster, he and the other friends try to hide it from Mr. Herriman.
Bloo shows something to Mac from the roof of Foster's, and then neither can find their way downstairs for dinner. Mr. Herriman insists that no one can eat until Mac and Bloo arrive, and Madame Foster helps sneak them food while Herriman isn't looking.
A boy and his beloved imaginary friend are able to stay together at an orphanage of sorts for imaginary friends that children have outgrown to be adopted by new children.