When intelligence obtained by Shepherd during her stint at the notorious ADMAX prison is linked to a pending attack on U.S. soil, Keaton and the Cointel team embark on a manhunt to find and stop a deadly international operative. Keaton confronts questions of loyalty and betrayal when it comes to Anna Cruz and his late fiancée’s father, Thomas Heffron.
After a bomb explodes in Jersey City, the Cointel team captures a key planner, Sam Fathi, who can lead them to Tal, the mastermind behind the bombing. When Sam proves difficult to break, Shepherd convinces Keaton to detain a former Egyptian intelligence officer to help, leading to an urgent mission to stop another bomb from going off.
When the FBI intercepts stolen NSA software intended for Tal, Keaton uses the technology as an opportunity to go on the offensive and sends Shepherd undercover to pass the technology to the intended recipient, a 19-year-old computer genius. Keaton must choose between catching Tal or saving the life of an innocent teenager.