Emir Goodspeed's murder spreads like wildfire through D.C., catching others in its burn, while D.C.-powerbroker Ed Ramsey seduces his next victim: an art aficionado named Shannon Witmer.

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.

A fresh lead sends Cross to Philly with his son Damon. Along the way, father and son reconnect through the shared grief over Maria's death.

Cross closes in on Ed Ramsey as the clock desperately ticks down to the moment when Shannon Witmer is set to die. Will Cross make it in time?

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.