Ed's work catches the attention of NSA operative Taylah Sanders and a mysterious institute.

While retracing Safiya's steps, Ed uncovers chilling pleas from the past. Taylah tries to earn Ed's trust.

Ed digs deeper for clues at the institute. Andrea navigates devastating news in Baghdad. Taylah reconnects with leadership.

As Ed and Taylah try to expose the truth, a deadly threat is discovered to be closer than they could have imagined.