The Popes are a family who haven't been able to use their real identity for years. In the late sixties, the parents set a weapons lab afire in an effort to hinder the government's Vietnam war campaign. Ever since then, the Popes have been on the run with the authorities never far behind. Today, their eldest son wants a life of his own although he is aware that would mean that his parents would either get caught or he will never see them again.

An 8 year old Amish boy and his mother are traveling to Philadelphia, on their way to visit the mother's sister. While waiting at the train station, the young boy witnesses a brutal murder inside one of the bathroom stalls. Police detective John Book is assigned to investigate the murder of the man, who was a undercover cop. Soon after, Book finds out that he's in great danger when the culprits know about his investigation and hides out in the Amish community. There, he learns the way of living...