Daddy comes home from war with post traumatic stress syndrome. His service dog is trained to be dedicated to Daddy, and Daddy's dog is not meant to be a child's pet. Cynthia Crosson, Ed.D, a psychiatric social worker, and Carole Williams, illustrator, provide children with a clear, gentle explanation about why this is Only Daddy's Dog.

Sunny's mom, Amanda, returns from deployment in Afghanistan injured and confined to a wheelchair. Spark, her service dog, helps her regain independence. When Sunny accompanies Mom and Spark to appointments at the veteran's center, she meets Malcolm whose veteran dad, Gabe, also has combat-related injuries. Sunny and Malcolm become friends and decide that Gabe, too, needs a specially trained service dog. Together they strive to make it happen.