Foster is a young boy with a very overactive imagination. Foster tells his story from his point of view and explains the troubles of teaching his parents how to talk and understand his needs. Foster has a teddy bear named Shane that is his best friend and seems to get Foster into trouble at every turn. Foster has a big sister named Kala that is a loving but an overbearing sister. She is always having Foster and Shane participate in tea parties and dress up days. Fosters loves his mommy and daddy and is always trying to be a helper. Unfortunately Fosters help is usually not as helpful as he thinks it is.