Erin and Anthony must trust a sociopath who claims he has evidence to convict a double-murderer. Frank faces backlash from his department when he suspends an officer for violent behavior. Danny and Baez try to arrest a notorious gangster who appears to have people covering for him inside the department.

Snowed-in flight attendants spend Christmas Eve together; The Guy is delayed on his way home for the holidays.

After Oversight is almost killed in a bombing, he recruits Mac to help him find the suspected bomber, Mason. However, when Mason reveals he didn’t plant the bomb, the three team up to track down Codex, the shadow organization that set them up. Also, Mac meets his aunt Gwendolyn.

The Task Force investigates a series of attacks on data centers perpetrated by a Blacklister with a peculiar condition, as Liz conducts a secret investigation on the side. Glen desperately tries to prove his value to Red after a shipping mishap.

Jimmy invites Miley Cyrus, Rachel Brosnahan and Lewis Capaldi to his #stayhome party via safe social distancing video chat in another home edition of The Tonight Show.