CAN ONE BRAVE DOG DEFEAT A VICIOUS GANG? That's what PD's Grandpa Angelo tells him after PD is attacked by Diablo and his pack of wild dogs. But when Angelo, a retired War Hero, attempts to organize Summerland's dogs and stop Diablo from terrorizing their hometown, Angelo goes missing. Will PD, who's just a puppy, learn how to be brave and conquer his fears in time to find his missing Grandpa? Follow the adventures of PD as he journeys beyond the Forbidden River to Diablo's abandoned junkyard hideout. If a Witchy Woman, a trickster coyote, a scary gator, a pouncing panther, and a three-headed fire-breathing monster can't stop PD and his newfound friends, can Diablo and his brutal gang prevent them from rescuing Angelo and saving Summerland?