Former CIA analyst, Kat Hastings and her investigative reporter husband, Robbie O'Toole, have been in hiding for a year, trying to elude a brutal hitman seeking revenge. They're discovered and decide to separate but first, Robbie tells Kat about important information he needs her to find and protect at all costs. As Kat reluctantly boards her plane without Robbie, he calls and tells her he's been found, and she must search his duffle bag. She hears a loud whack followed by his agonizing moan, and then the line goes dead. She locates a slip of paper on which is scrawled, "The Scions of Atlantis."
James Treadwell, an ultra-wealthy Boston businessman and a friend of Robbie's from the sixties, has promised Kat safety in return for her analytical skills. Once a radical, Treadwell is now forming a new political party to counter the partisan politics crippling the nation. He claims his party will be one of integrity and unification, but Kat starts to wonder whether he is a member of the Scions of Atlantis, which Kat learns is an international cadre of rich and powerful puppet masters who pull the strings of the world's leaders.
One of the rising recruits to Treadwell's new party is Arab-American Adam Zuabi, who, despite the appearance of living the American dream, is actually a secret operative, the sword his father Adheem will use to decapitate the US government. To save the country and those she loves, Kat must unearth Zuabi's plot, expose the Scions, and ascertain Treadwell's true motives but first, she must overcome her own demons.
