Running from a dangerous past has made Cassie McAfferty paranoid and extremely careful about who she lets in. After running for too long Cassie decides she's found her place in the small town of Heart Butte, Montana. She has allowed herself no attachments, except for her small son. Her little boy is the reason she's not willing to go home. Word gets to Cassie's father, the Colonel, who enlists the help of Travis McKennan, a top Marine about to be discharged from the service. Using the room for rent as cover, Travis prepares to protect Cassie as he discovers the dangerous secret she has been keeping. Can Travis fight the growing attraction he feels for Cassie? And still protect her, during a deadly game of cat and mouse, with a killer that's out for revenge?

Caleb Tanner is a unique combination of both killer and savior all wrapped into one. As a former Navy Seal and medic, Caleb has the ability to both take life and restore it with ease, making him a vital member of Bravo Team at Knight Security. He would kill or be killed for his teammates and the women they love, earning him the reputation of both fearsome warrior and compassionate caregiver. When a new job assignment flares every protective instinct within Caleb, he is fully prepared to step in as a knight in shining armor, but what if his new assignment, Elaina Flores, has no interest in being saved?

Declan "Boss" Packard is dominating and powerful, with a deep need for control. Being the leader of a Special Ops team at Knight Security, his missions are priority and his teammates are his life. The word "love" has never been a part of Declan's vocabulary and he has never been interested in romantic bullshit, but Lexi Bradshaw changes that in an instant. Lexi awakens every protective and possessive fiber of Declan's being, but when her past returns to haunt her can Declan surrender his need for control in order to save her life?