When a gunman killed five Amish children and injured five others in a Nickel Mines, Pennsylvania schoolhouse shooting in October of 2006, the world media attention rapidly turned from the tragic events to the extraordinary forgiveness demonstrated by the Amish community.

An elite team of FBI profilers analyze the country's most twisted criminal minds, anticipating their next moves before they strike again. The Behavioral Analysis Unit's most experienced agent is David Rossi, a founding member of the BAU who returns to help the team solve new cases.