What does firedog Sonny Weatherbee and stray terrier Misty have in common when they meet at the hollow tree? Misty, a stray terrier mix, expected little from others in the early years of her life. Sonny, an experienced black Lab, was a search-and-discover firehouse dog on a mission when he came upon Misty. In the months and years that followed, Misty, a homeless stray, was transformed by the love of the Weatherbee family, who eventually adopted her. Together, while living in their dog tree house, Sonny and Misty experience service-dog life, raise unique and talented puppies, and show their community that gifted dogs can work and thrive in our world to help others live brighter lives.