Injured in a flood, a young boy recovers in the hospital and then at home with the help of a working dog trained to comfort victims of natural disasters.
At Hound Town Lake, Emma meets the newest lifeguard, a Newfoundland, and learns how the dog's webbed feet and rudder-like tail are used to save struggling swimmers.
Ten-year-old dog-walker Cali sees a new three-legged dog named Thunder hop around her neighborhood as well as any other dog and she soon learns of his bravery in the Marines.
Search-and-rescue dogs are used to find three students and a teacher when they become trapped in the basement of an elementary school following an explosion.