After successfully saving Liz (Megan Boone) from the Cabal, Red (James Spader) will be facing a new problem in the upcoming episode of the hit NBC series "The Blacklist."

Red is currently working with a group that aims to take down the world's most deadly organized crime syndicates. To do this, they must infiltrate the faction of elite and dangerous criminals and capture their leader. Red will prove to be very useful for the FBI on this, but the arrival of a new threat could be his undoing. In "Mr. Gregory Devry," the promo reveals that a perplexing problem has surfaced for Red. A man has turned himself to the FBI, stating that he is Raymond Reddington and that the "Red" their agents are working with is an impostor.

He knows all about the task force's previous cases. In the clip, he is seen locked up in a similar containment cell Red was in the past. The man is saying that he is very surprised that someone with his name has been helping the Bureau. When he and Red come face-to-face, he accuses him point blank that he is a sham. Red, however, laughingly shrugs off the accusation. What is the man's purpose for accusing Red of fraud? Who is the real Raymond Reddington?

While Red works for the FBI, Liz will find herself at an impasse on what to do with her life now that she has been exonerated from all crimes. Being an FBI asset is reportedly getting to her nerves. Executive producer Jon Bokenkamp told Entertainment Weekly that what happened to Liz has permanently "driven a real wedge" within her former team, it was impossible to turn back to how they were before she was framed.

"She's no longer an FBI agent. Her badge has been taken away. The best thing they can call her is a consultant... Even though she's cleared of these crimes that she was framed for... the fallout has driven a real wedge within the team, how they work, and who they are. Everything has become a little bit more gray," the executive producer said.

"The Blacklist" season 3 airs Thursdays at 9 p.m. EST on NBC.