Cormac -- a dark-red Golden Retriever who has always been afraid of thunderstorms and lightning flashes -- runs away one stormy night while his master is away. So begins a strange adventure that lands Cormac in the back of a red pick-up truck driven by a mysterious woman, takes him to a series of dog pounds and rescue shelters, and ultimately brings him to the suburbs of Connecticut. Meanwhile, his owner, devastated and trying to juggle his family and his new novel, becomes determined to solve the "dog-napping" case, watching his small-town community come together in search of his lost companion.