The task force is drawn into the investigation of an old case that has gained notoriety due to a popular true crime podcast. Red visits Dom Wilkinson for help making a difficult decision. Ressler makes a discovery about Katarina Rostova's past.

Red alerts the FBI to the suspicious death of a scientist specializing in artificial intelligence research. Meanwhile, Francesca Campbell further entangles herself in Red's criminal activities

The Task Force investigates an accountant who works for lucrative criminals in order to find the violent and thuggish brothers hired for his protection. Meanwhile, Liz must make a momentous decision.

The task force attempts to stop an abduction by searching for a "treasure man" who uses geocaching to hide illicit goods and facilitate transactions between otherwise warring criminal factions.

The task force's investigation into Arcane Wireless, an untraceable cellular network for criminals, leads to unexpected consequences. Red races against the clock to get a colleague out of trouble.

The return of The Freelancer unveils a conspiracy involving a local photographer. Ressler hits a personal milestone.

In an effort to prove their worth to Congressman Hudson, Red provides the task force with three criminal cases that are deeper than they appear; Ressler helps a friend make amends.