Tiny Tim, a child of seven, is awaiting the arrival of his younger brother. When the baby is born, Tim soon becomes clear that the child is not like everyone else but is actually a spy sent by the agency Baby Corp. to investigate a conspiracy hatched by PuppyCo., Which would replace all the children with the puppies. The two brothers, although very different from each other, will have to work together and be strong each other to save the parents who have been kidnapped.