A kidnapping poses a test for the capabilities of the Task Force as they contend with a mysterious pirating organization.

Dembe's position as an FBI agent causes complications for Red as the Task Force handles a case involving military technology. Cooper and Park each find their personal lives increasingly complicated.

The Task Force investigates a therapist who may be the key to the resurgence of an organized crime family. Red conducts an investigation of his own.

An investigation into the Conglomerate, a group of former government-sponsored assassins, becomes complicated when the Task Force learns one of their own may have ties to the group. Red digs deeper into the events leading up to Liz's death.