When the lead Santa Clara criminalist is found dismembered at a local restaurant and the crime scene is tagged with gang graffiti, Detective Darcy Lynch knows he's way out of his depth. For Lynch, this case is about more than just finding the man who slaughtered one of their own. If he fails to hunt down the killer, not only will his move to the Special-Case Task Force be jeopardized, but his entire career could be at stake. What looked like an isolated homicide becomes a blood bath when another member of the unit is gunned down and a drone crashes into a SJPD helicopter. Lynch must stop one of the most vicious California gangs before they execute his entire team.