In the world of FOSTER'S HOME FOR IMAGINARY FRIENDS, once a kid dreams up a new companion, it becomes real - and visible to everyone else. And while Imaginary Friends are seen on the streets every day, it doesn't mean that everyone loves them. Sometimes kids outgrow their Imaginary Friends. Sometimes a kid moves and becomes separated from his pal. Some Imaginary Friends weren't very good ideas to begin with. And every once in a while, a parent will force a kid to give up his Imaginary Friend before he's ready to do so.