On his first night with Detroit PD, Officer Walter O'Brien is called to a murder scene. A terrified twenty-year-old has bludgeoned her kidnapper with skill that shocks even O'Brien's veteran partner. Her bold flight from police custody makes the case impossible to solve. By the time Walter is promoted to detective, his fascination with the missing, gray-eyed woman is approaching obsession. And when Walter discovers that he's not alone in his search,...

Natasha Romanov, called the Black Widow, rescues a young girl, Ava, from Ivan, the man who once trained her as an assassin--and eight years later she is called upon to protect Ava from a threat from the past.