Cocker Spaniel Lady is the apple of her owner's eyes, but when a new baby enters into the family, she starts to feel neglected. It doesn't help that a street dog with no name, tells her that when the baby moves in, the dog moves out. When her owners go on a trip out of town with the little one, leaving Aunt Sarah to watch her, she ends up running away and into the company of the nameless street dog. 

She learns how to live on the streets but decides she much prefers life at home. Things begin to settle down, and she finds her place, but a rat threatens the life of the baby. With the street dog's help, she manages to save the baby and then she races to save the street dog from his inevitable death.