In Birmingham, Det. Eric Torrence investigates the death of a 24-year-old father-of-two shot in the street. 36 hours later Det. Cynthia Morrow is called out to the murder of a 27-year-old man found in an open field. While Torrence struggles to find anyone who will ID his suspects, Morrow runs into similar problems trying to locate the last person seen with her victim. Detectives are stunned when they discover the cases are connected.

In Miami, ten days before Christmas, a young corrections officer is shot dead with her two-year-old son while sleeping in their bed. Det. Kevin Ruggiero and Sgt. Ervens Ford take the case personally--not only do they consider the victim 24-year-old Ciara Lee as "on our team", but the death of her baby boy hits them emotionally. In this intense manhunt the detectives uncover the intended target, the motive, and the suspected killers, making an arrest two days before Christmas. But a surprise twist at the end leaves them frustrated and determined.

A massacre outside a corner store leaves two dead and two clinging to life. With no witnesses, Miami detectives hope the surviving victims live to tell who pulled the trigger. In Cleveland, a man is found strangled in his apartment. Detectives go on the hunt for one of his friends and uncover a shocking motive.