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.

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.

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?