Best friends Emily and Lesley go on a road trip to the desert. When Emily decides to get off the highway and take a "short cut," they become the target of a relentless and psychotic trucker who forces them to play a deadly game of cat and mouse.

Thanks to his police officer father's efforts, Shawn Spencer spent his childhood developing a keen eye for detail (and a lasting dislike of his dad). Years later, Shawn's frequent tips to the police lead to him being falsely accused of a crime he solved. Now, Shawn has no choice but to use his abilities to perpetuate his cover story: psychic crime-solving powers, all the while dragging his best friend, his dad, and the police along for the ride.