Like many children, Helen dreamed of a kitten. But mom was against it, so they agreed this way: Helen would stop asking for a pet, but she could help her cousin Lucy at the veterinary clinic. One day, Helen and Lucy picked up a kitten on the street that had been hit by a car. The baby's life was saved, but his owner was never found. They couldn’t leave the kitten at the clinic, but it needed special care until it finally recovered. The girl had to break her promise and ask her mother to temporarily shelter the kitten. Fortunately, the mother agreed, and the baby, whom Helen named Silver, moved in with them. But how can Helen now admit to her mother that she dreams of becoming Silver’s new owner? So that their home becomes not temporary, but permanent for Silver?