Kinjo Heywood is a hard-nosed linebacker for the New England Patriots who's earned his reputation as one of the toughest guys in the league. When off-field violence repeatedly lands Heywood in the news, his agent hires Spenser to find the men who he says have been harassing his client. Heywood's troubles seem to be tied to a nightclub shooting from two years earlier. When Heywood's nine-year old son, Akira, is kidnapped, ransom demands are given, and a winding trail through Boston's underworld begins. It will take both Hawk and Zebulon Sixkill to watch Spenser's back and return the child to the football star.