"The Blacklist" Season 4 returns for its tenth episode titled "The Forecaster" this week. Promotional photos for the episode revealed much of Red (James Spader). A future episode, meanwhile, showcases Liz (Megan Boone) going undercover among a band of thieves.

"The Forecaster" features a new case for Liz and her team. An unknown person has "left a diorama depicting a crime soon to be committed," SpoilerTV reported.

Red, meanwhile, explores a "new business opportunity." Photos from the upcoming "The Blacklist" episode show Red investigating a blank wall with a flashlight that casts a purple beam.

Another snapshot features Red talking to a woman wearing a red hoodie. It appears that Red and the mysterious woman is discussing the aforementioned business deal. What could it be?

Another photo from "The Forecaster" shows Red having a meeting with a man donning a suit. And another has Red taking a breather from the action and drama by putting a puzzle together. Check out images from this week's "The Blacklist" episode over on SpoilerTV.

Liz, meanwhile, will undergo some kind of test in the Jan. 19 episode of "The Blacklist" Season 4 titled "The Harem." Jill Hennessy guest stars as the leader of an elite organization of female master thieves, and Liz must infiltrate them before they carry out their next big heist, Entertainment Weekly reported.

As what happens in any undercover mission, Liz must prove herself to Hennessy's character to gain her trust. The upcoming "The Blacklist" episode will also showcase Red struggling with "unexpected problems in his operations" and Tom (Ryan Eggold) devoting his energy and time into fatherhood, according to a separate report from SpoilerTV.

Fans are worried about whether "The Blacklist" would get a Season 5 renewal or not, given that the series' fourth season is having a hard time attracting viewers. Season 4's first eight episodes averaged with a not-so-great 5.8 million viewers and 1.14 million in the 18-49 demographic in Live+same day ratings, Cinema Blend reported.

Those numbers, however, increase in DVR viewership. The show got 10.6 million DVR viewers and 2.37 in the 18-49 demographic. "The Blacklist" also performs well in affluent homes that lead to good advertising revenue, so it's possible that NBC will keep the program and renew it for another season.

Do you think Liz will succeed in her undercover mission? Any thoughts about Red's intriguing business venture? Should "The Blacklist" get renewed for Season 5? Sound off in the comments section below! "The Blacklist" airs Thursdays, 10-11:00 PM on NBC.

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Topics The Blacklist, NBC, James Spader, Ryan Eggold