Red assists the Task Force in tracking a mysterious Blacklister who carefully develops airtight alibis for murderous clients. Meanwhile, Liz's reinstatement at the FBI hinges on an evaluation with a psychotherapist.

As Liz continues tracking Tom's killers, Red tries to solve a tax issue in his money laundering. Meanwhile, Aram goes out to the field when the Task Force investigates a viral outbreak.

When an associate of the Nash Syndicate is murdered, Red sets Liz and the Task Force on the case in order to recover evidence crucial to bringing down Ian Garvey. Meanwhile, Aram considers a step forward in his relationship with Samar.

Liz uses intel from an unexpected source to force Red to uncover the secrets he holds; Red initiates a plan to retrieve the duffel bag of bones.

An unidentified young girl reappears and the team tries to find her connection to the secret Red is hiding. When her family steps in to protect their own secrets, the investigation turns into a race to save the girl's life.