Washington, D.C. Detective Alex Cross is called to solve the case when a Black Lives Matter activist is killed in cold blood.

Cross raids a home connected to Emir's murder. The suspect escapes, but leaves behind a piece of evidence so unique, it limits the list of suspects to an elite D.C. few.

With Cross hot on his heels, Ed Ramsey sets up a new locale to perform his kills, as the Cross family continues to be tormented by a mysterious someone connected to Deirdre Nolan.

Cross realizes that his attempt to protect his family has put them in more danger. He races against time to rescue the people he loves.