After being separated from his owners and lost in New York City, the beloved collie Lad endures such harrowing experiences as being chased by a police officer, nearly drowning, and being attacked by a vicious dog.
While his mate Lady is ill in the hospital, Lad looks after their puppy Wolf, who gets into a lot of mischievous trouble and even endangers both their lives.
Recounts the life of Helen Keller, who had lost her sight and hearing by age 2, focusing on her early childhood and how her teacher Anne Sullivan succeeded in teaching her to understand the manual alphabet.