One Christmas, Lady, a cocker spaniel puppy, sprang into the arms of Jim Dear and Darling. It was love at first sight. Since then, Lady has spent every day doing the same wonderful routine with her family-and she wouldn't change a thing. But when Jim Dear and Darling bring a baby into the house, Lady's world turns upside down. She leaves home to find herself on the dangerous city streets, where she meets up with a dog named Tramp. He tries to convince her that his way of life is a daring adventure, but Lady has her doubts. Will she leave her quiet life behind? Or will she learn that Jim Dear and Darling have more room in their hearts than she ever imagined?