She's worked hard to distance herself from her father's legacy—but family ties are hard to break When FBI Agent Daria Nevsky returns home to an intruder, she's not exactly surprised. She's been on high alert ever since her father, a powerful figure in Russian organized crime, was killed. She is surprised, however, when the man in a ski mask and hoodie tells her that her father sent him. Dr. Ryker Donahue knows he's heard the name Daria Nevsky before. As he tends to the young woman's wounds, he tries to put the pieces together. No sooner does she show up at his hospital than it becomes painfully clear that whoever she is, she's in trouble. He feels a strong pull to protect her—but he quickly realizes that this is a woman who knows how to handle herself. It will take both of them—and a handful of their skilled friends—to figure out who's after her, what they really want, and how to make it out alive.

When it comes to love, some lines are meant to be crossed True, US Secret Service Agent Liam Harper is charming, handsome, and absolutely devoted to the people and things he cares about—including his job protecting the vice president's moody son, Mason. But Emily Harper can't let Liam's good qualities cloud her judgment. As the sister of a Secret Service agent, she knows that Liam's job could mean taking a bullet, and she's vowed never to get romantically involved with someone in that line of work. Agent Harper knows he's been friend-zoned, but that doesn't stop him from falling for Mason's petite and plucky physical therapist. She never fails to put the privileged teen through his paces, yet she manages to make the kid like her all the same. And that Southern drawl is nearly intoxicating when she lays it on thick. But when Mason enters the crosshairs of a killer, Emily and Liam will find the lines between professional and personal are about to get awfully blurry.

When it comes to a battle of the wills, these two may have met their match—in each other Claudia Gallegos' career in the CIA once sent her to the Middle East, but that was in the past, and it's against policy to be in contact with any foreign entity outside the scope of a mission. So when the personal bodyguard of a Saudi prince exiled to Virginia calls her with an urgent plea for help, her first instinct is to ignore the request. She's not going to risk her job over some pampered black sheep from a royal family. But, it couldn't hurt to just check it out . . . Former Army PSYOPS officer Ari Blackman is comfortable putting his expertise to use to influence governments, organizations, and people in ways that are more favorable to the mission at hand. Now he's been charged to use those skills on a fellow intelligence officer to determine whether she's compromised her oath and is involved in the death of high profile foreign national on US soil. Thrown together in a fight not their own, Claudia and Ari have no reason to trust one another. But they must learn to work together to prevent a coup that could put America at risk.