MISSING. That's what the posters say about the girl. But this isn't just another missing kid - not for ten-year-old Calvin Crane. After he bumps into a strange guy at Yellowstone National Park who's secretly removing the posters, Calvin thinks their van is being tailed. Getting murdered isn't exactly on the family itinerary.

In a cramped van full of farts and frito feet with his whiny older sisters, parents and crabby Grandma Edith, Calvin presses forward on a cross-country road trip to California to attend the wedding of a family friend. But as the search for the missing girl widens state-by-state, Calvin can't escape her haunting face. Neither can he shake the eerie feeling that he's being followed - suspicious-looking people, strange vehicles. Who can he trust? His parents think it's just his OCD talking.

As he learns more details about the missing girl, Calvin is forced to face a search of his own: one for self-acceptance. Sometimes being lost is more than just a matter of location. Still, Calvin can't shut off those nagging questions: Where is that little girl? Is he being stalked by a kidnapper? Or is his mind playing tricks on him? Does danger lurk just a couple of steps behind?