Derek Turpin is set on revenge and no one is safe, least of all Damien and Millie. Yet duty and friendship call, pulling the detective duo in opposite directions. 

Young Artie Sutherland is missing, presumed kidnapped. While Damien and Hershey engage in a crosscountry race against time to rescue the heir to the Sutherland fortune, Millie must go to the aid of a sister-in-law she has never met, and comes face-to-face with death.