Operation Starfish has one goal: to remove domestic violence survivors from danger. But when a mission backfires in tragedy, the band of bikers who founded OpStar dissolves the organization and their ride-or-die friendship. Five years later Amanda, Sidney, and Cassandra are brought back together by the same thing that tore them apart when the man who victimized his wife is murdered, and all signs point to Cassandra. Circumstances being what they are—in a word: dire—the trio reignites their bond, if only to shut and barricade the door to their past once and for all. Their tentative sisterhood is infiltrated by Investigator Sean Beane, whose intentions aren’t as clear as they should be, but even so he’s too tempting for his (or Amanda’s) own good. Despite all reservations, regrets, and blossoming romance, it’s time for these biker babes to strap on their helmets and hit the road—before the real murderer can run them off it.