NBC's "The Blacklist" is full of mysterious twists and turns. In the previous episode of "The Blacklist," Liz and Red's relationship hit a huge blockade after circumstantial evidence surfaced that Red is the man framing Liz's husband.

There must be more to Liz's husband than meets the eye but, the truth is not going to surface soon. The next episode of "The Blacklist" is called "Frederick Barnes." Robert Sean Leonard will portray the titular character of Frederick Barnes. In the preview video, Red describes Frederick Barnes as the "most dangerous man in the world." We wonder aren't all the men and the women on Red's 'Blacklist' dangerous and the most wanted.

Liz needs Red's help to nab the "dangerous man in the world" after a chemical attack on a subway, with 37 death reported. It will be difficult for Liz to team up with a man who she thinks is trying to destroy her husband and her relationship as well. Without Liz, it is no fun, according to Red. As per the preview, Red wants to move past and while working for FBI, Liz has to move past and keep her personal issues aside.

 [Youtube/1televisionpromos]

Liz had started to trust Red and had confided her fear and doubts to Red. And, now that relationship is crumbling and Liz can be seen telling Red in the preview: "I don't need your protection."

Liz has the power to make Red disappear as Red tells her: "Tell me to go Lizzie and I'm gone." Will Liz tell him that? We think it is highly unlikely that Liz will do that as a lot is at stake.

"The Blacklist" Episode 7, "Frederick Barnes," Official Synopsis: "Liz and the FBI track the criminal responsible for a chemical attack on a subway. Elsewhere, Liz reluctantly reaches out to Red to help nab a brilliant scientist (Robert Sean Leonard)."