The Chief packs his things and heads off on his motorcycle into the sunset of Arizona. While playing golf, Cujo finds a severed finger when searching for Mannion's golf ball. Mannion bring the finger to the attention of Deputy Arturo Ortez (_Jaime Gomez (I)_) while some M.P.D. officers deal with their reassignments.
A lawyer and his wife are killed in their home and the only witness is their autistic daughter. Jack Mannion calls on former F.B.I. hostage negotiator Tommy Morgan, (who is now a horse whisperer), to try and get through to the girl and discover the identity of the killer.