When an Indian agent is assaulted on a reservation, it's a federal crime demanding the attention of the FBI. Thus it is that Inspector Erskine (Efrem Zimbalist Jr.) investigates several mining accidents near a sacred Indian burial ground--accidents that the locals have chalked up to supernatural activity. Filmed on location at California's Mono Crater Park, this episode marks one of the final pre-M*A*S*H appearances of Wayne Rogers. ~ Hal Erickson, Rovi