It's just another day at the office for Washington Metro Police lieutenant Sam Holland when a body surfaces off the shores of the Anacostia River. But before Sam can sink her teeth into the new case, Secret Service agents seize her from the crime scene. A threat has been made against her family, but nobody will tell her anything --- including the whereabouts of her husband, Vice President Nick Cappuano. With a ruthless killer out for vengeance, and Nick struggling to maintain his reputation after secrets from his own past are revealed, Sam works to tie the threat to a murder that can't possibly be a coincidence.