Why does a man jump into a new Thunderbird in December 1959 and drive across the U.S., vowing to his wife and young children, "I'll be home for Christmas"? And why, more than six decades later, does his son, the author of this thoughtful road trip memoir, decide to retrace those tire tracks city by city? As you ride along with both men on their separate but congruent journeys, watch as the author makes surprising connections with his father across the gulf of time. Was that his father's Thunderbird he just spotted? Who does he speak to under a salmon-colored sky in New Mexico? Can two people truly see and experience the same things through different lenses and in different millennia? The answers may surprise you.