Lady, a golden cocker spaniel, meets up with a mongrel dog who calls himself the Tramp. He is obviously from the wrong side of town, but happenings at Lady's home make her decide to travel with him for a while. This turns out to be a bad move, as no dog is above the law.

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This warm-hearted fairy tale about an unlikely romance between two dogs from opposite sides of the tracks gets the colorful, old-fashioned Disney treatment in Cinemascope.