Four African-American Vietnam veterans return to Vietnam. They are in search of the remains of their fallen squad leader and the promise of buried treasure. These heroes battle forces of humanity and nature while confronted by the lasting ravages of the immorality of the Vietnam War.

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.