Red has been drugged and kidnapped by Katarina -- but Liz and the task force still have many unanswered questions about his real identity.

1. Louis T. Steinhil (No. 27) 43m Red awakens to find himself a captive and isn't sure who to trust while Liz and the team head into unfamiliar terrain as they attempt to locate him.

2. Louis T. Steinhil (No. 27): Conclusion 43m As Liz and the task force continue searching for Red, he receives assistance from a surprising ally and discovers he's not Katarina's only target.

3. Les Fleurs Du Mal (No. 151) 43m Aram infiltrates a wealthy secret society with bloodthirsty tastes. Red seeks out a former associate involved with the mysterious Townsend Directive.

4. Kuwait 43m Cooper's past and a "little bit of nastiness" that occurred in Kuwait return to haunt him when a fellow officer long believed dead turns up as a POW.

5. Norman Devane (No. 138) 43m Liz and the team pursue a notorious hired killer whose specialty is weaponizing disease strains. In Cuba, Red and Dembe hunt down a lead.

6. Dr. Lewis Powell (No. 130) 43m Francesca Campbell gets further enmeshed with Red while the death of an artificial intelligence expert puts him and the task force on alert.

7. Hannah Hayes (No. 125) 43m The task force investigates the sudden disappearance and return of a governor. Red and Dembe keep tabs on someone close to Katarina Rostova.

8. The Hawaladar (No. 162) 43m Red and the task force seek a blacklister who specializes in money transfers that can't be traced. Liz gets some upsetting news from Agnes.

9. Orion Relocation Services (No. 159) 43m Red and Liz investigate a group that secretly helps criminals disappear. Katarina turns to an old friend for information about the Townsend Directive.

10. Katarina Rostova (No. 3) 43m With the task force, Red pays a visit to a former blacklister while Liz makes a critical choice due to an explosive confrontation.

11. Victoria Fenberg (No. 137) 43m Liz and Ressler put their trust in each other. Aram's love life gets complicated. Red tracks a forger who disrupts his plans to sell stolen art.

12. Cornelius Ruck (No. 155) 43m Red reunites with an ex-lover on a private island as part of his stolen art scheme, but guests there begin mysteriously turning up dead.

13. Newton Purcell (No. 144) 43m A blacklister with a strange condition attacks data centers. Liz conducts a secret side investigation. Glen tries to prove his usefulness to Red.

14. Twamie Ullulaq (No. 126) 43m A mysterious disappearance in the Alaska Triangle is personal for Agent Park. Aram and Red try to determine what happened to Elodie's husband.

15. Gordon Kemp (No. 158) 43m A case involving an arms manufacturer puts Red and the task force, including Liz, on opposing sides. A paranoid Ilya Koslov thinks he's being watched.

16. Nyle Hatcher (No. 149) 43m A cold case Liz investigated as an FBI profiler heats up again, leading the task force to a mortician with a bizarre means of making a fortune.

17. Brothers 43m Ressler and his brother Robbie return home to Detroit when they receive word that a secret they've kept buried for 25 years may soon be exposed.

18. Roy Cain (No. 150) 43m In the series' 150th episode, Red, Liz and the task force investigate the mysterious kidnapping of Dembe's imam, exposing a corrupt prison warden.