Amy has always wanted a cat, but Mom and Dad think she's too young to have a pet of her own. So she is thrilled when she sees a tiny kitten roaming around her yard one misty morning. The kitten is very thin and doesn't have a collar, so Amy assumes that the kitten-whom she has named Misty-doesn't have a home. Misty is shy at first, but gradually, she begins to trust Amy, who feeds her and gives her the attention she so desperately wants. But how long can Amy keep Misty a secret from her parents?