Citadel Executive Protection (CEP): New York City’s top-rated security agency that hires and assigns only the best of the best for each case. When New York City’s elite are being terrorized, Julia Cooke’s father hires CEP bodyguard Chase Murphy to guard her. Chase takes all his assignments seriously and knows the danger of each situation. In addition, he needs this job to continue his education to achieve his ultimate goal of practicing law one day. How could he know the biggest danger this time would be guarding his heart? Julia Cooke is a young professional who’s convinced that her multimillionaire father’s only concern in having her guarded is to protect his money. Julia is immediately attracted to Chase, but his strictly-business demeanor puts her off. Just how is she supposed to ignore the handsome man responsible for her well being? When a beautiful woman and a hot bodyguard come together to battle bad guys, each other, and their own feelings, someone’s bound to let their guard down.

Citadel Executive Protection (CEP): New York City’s top-rated security agency that hires and assigns only the best of the best for each case. Tilly Maxwell is a freelance photographer in New York City who happens to take the right photo at the wrong time. While on a shoot, she captures in the background of one of her pictures a man who’s just committed a murder. A man whose perfect crime has now been foiled because of chance. Because of one ill-timed click of the camera, a photographer must be silenced, and Tilly’s now on the run for her life. John Osby, Oz, an ex Army Ranger who is now one of CEP’s best, is shocked to see Tilly when she calls on the agency needing help. Talk about a blast from the past. They attended high school together and he remembers her as the quiet, adorably awkward and somewhat nerdy photographer he'd had a crush on, but because their lives were so different, he didn’t dare cross the line with her, except for one drunken kiss. But now they're older, she’s blossomed into a real beauty and he intends on crossing any line he can to protect her… and have her as his own. A woman who adamantly guards her heart encounters the one man who may be able to break down her barriers. When the past collides with the present, boundaries will be pushed and unbreakable hearts will be tested to the limit.

Citadel Executive Protection (CEP): New York City's top-rated security agency that hires and assigns only the best of the best for each case. Psychologist Quinn McDonnell runs a practice on the Upper West Side in Manhattan, NY, specializing in adolescents. Quinn's a no-nonsense, tell-it-like-it-is kind of woman who doesn't take a lot of crap from anybody. When she starts receiving threats from a man she believes is a former patient's brother, she finds herself entwined in an insidious web of deceit and betrayal. Seeking the help of CEP, she finds herself once again involved with the handsome and broody Gunner Murphy, a man she butted heads with in Unbreakable Hearts (CEP #2), a man with whom she's now engaged in a dance of steamy flirtation as neither wants to admit their true feelings for the other. Gunner is a former chopper pilot for the Army, having flown in a special ops regiment called the Night Stalkers, who has deep-seeded issues he thought he'd dealt with. The race is on as Gunner enters into a game of cat and mouse as he tries to uncover the dark secrets of a sick and twisted mind to help keep Quinn alive. Can he overcome his own fears as he rushes to beat the clock to save her?