Luis's first book sparked a national conversation about service dogs and PTSD. In this spectacular new memoir, he and Tuesday bring their healing mission to the next level, showing how these beautifully trained animals can assist soldiers, veterans and many others with disabilities. Rescuing a forgotten Tuskegee airman. Battling obstinate VA bureaucrats. Delivering solace to troubled war heroes and their families. Everywhere these two go, they highlight the miraculous talents of service dogs.