2. Syracuse

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

3. The Sequence

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

4. Kaplar

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

5. House of Wisdom

Ed and Taylah join Andrea in Baghdad, where they unearth ancient, buried answers—and get caught in the crosshairs of an unknown enemy.

6. The Last Link

As the NSA trails their every move, Taylah and Ed race to track down the final piece of the puzzle.

7. Prime Finder

Ed is coerced into completing his work. Taylah considers an ultimatum. An ally gets trapped in the middle of the mayhem.

8. The Key

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