“Foster’s Home for Imaginary Friends” is an animated TV series that ran from August 2004 to May 2009, spanning six seasons and 79 episodes. The show explores a fascinating concept: in a universe where imaginary friends are real, physical entities, what becomes of them when the children who imagined them grow up? Are they left behind, or do they continue to exist?

According to creator Craig McCracken, these friends find a new home at Foster’s! This is a sanctuary for imaginary friends whose creators have outgrown them, allowing them to live together until they are adopted by new children in need of companionship. The narrative centers on Mac, a timid and imaginative 8-year-old, whose imaginary friend Bloo is evicted from his home by Mac’s mother and must move to Foster’s. Mac is determined to keep Bloo from being adopted by someone else, so they agree that Bloo will remain off the adoption list as long as Mac visits him daily. Bloo’s self-centered and playful personality starkly contrasts with Mac’s, leading the duo to create all sorts of mayhem within the house.