When the mutilated body of renowned cosmetic surgeon Randall Landry turns up at a secluded bayside marsh in the town of Sandwich, Police Chief Thom Burrough's life is turned upside down. While investigating the murder, he and Barnstable County coroner Abby Rhodes will uncover a plot more sinister than anything they could have imagined. On the outskirts of Chatham, a group of terrorists has assembled to unleash destruction on Cape Cod.