Season 4 of the crime thriller show "The Blacklist" is gearing up for more action. In episode 13, titled "Isabella Stone," Raymond "Red" Reddington, portrayed by James Spader, continues to endanger the people around him with all the secrets that he keeps.

According to CarterMatt, someone appears to be targeting Red in "Isabella Stone," episode thirteen of season 5 of "The Blacklist." While the fact that Red keeps secrets that often causes harm to the people he works with, his dangerous habits have been a staple of the show.

However, things become more complicated in "Isabella Stone" because soon, Red will need help from the FBI Task Force to keep his team together. CarterMatt has also posited that in episode thirteen, Tom Keen, portrayed by Ryan Eggold, could be one step closer to becoming the main character of "The Blacklist: Redemption," a spin-off show based on "The Blacklist."

The synopsis for Season 5 episode thirteen reads, "The Task Force springs into action to find a sophisticated criminal (guest star Melora Hardin) who has been targeting Red's businesses. An unexpected event sets Tom on the hunt for information about his past."

The "The Blacklist" Season 4 episode 13 "Isabella Stone" promo showed Stone herself in action. Stone is described as a "character assassin who can morph into almost anyone" to eliminate her targets.

Could Red be the next name on Stone's hit list? Stone has even hired the services of Natalie Luca, and it looks like the assassin has had Red in her sights for a while now.

In other news, IBTimes revealed that in the show's twelfth episode, titled "Natalie Luca," Red first suspected his "longtime rival" Baldur Magnusson (portrayed by Daniel Davis) of murdering his accountant Zack Smoll (played by Nick Reynolds). Red then hires Tom to pretend to be the infamous assassin Edgar Legat so the former could get to Magnusson.

Red then reveals that Legat "is not a real person," but a fake identity he uses to "cover up the crimes he and his associates commit." Magnusson is found, but Red finds out that while the former "did take advantage of Smoll's death financially," he had nothing to do with the murder himself.

Catch "The Blacklist" Season 4 every Thursday at 10 p.m. on NBC. Meantime, watch the promo for "The Blacklist" Season 4, episode 13 below!