The Behavioral Analysis Unit (BAU) will track down a serial killer in Los Angeles who may be working for the FBI in the next all-new episode of "Criminal Minds."

A preview video for the upcoming episode, which is entitled "A Badge and A Gun," reveals that a killer will use his badge to gain trust and access into his targets' homes, right before he strikes.

"Teen Wolf" star Marisol Nichols will also appear in the episode as Natalie Colfax, marking her second recent appearance on the show.

According to Carter Matt, the synopsis for the episode reads as follows:

"The BAU searches Los Angeles after the team discovers security footage that shows an UnSub being invited into victims' homes, on CRIMINAL MINDS, Wednesday, Feb. 24 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Marisol Nichols returns as Agent Natalie Colfax. Carmine Giovinazzo ("CSI: NY") guest stars as Andrew Meeks, a former janitor."

Later in the season, fans can look forward to the return of Paget Brewster as Interpol Agent Emily Prentiss. In the upcoming episode, Prentiss will call on the BAU to help her catch an elusive international unsub who she believes is planning an attack in America, reports TVGuide.com.

This will mark Brewster's second appearance on the series ever since she left "Criminal Minds" at the end of Season 7 and her character resigned from the BAU to work at the Interpol in London.

Earlier this year, executive producer Erica Messer told TVGuide that she was hoping the the "Grandfathered" would another appearance on the show.

"Paget is always welcome back," Messer said. "It's always about scheduling. She's busy, as she should be, she's got a new show, and it also has to make sense story-wise. We don't want to dip into that well too often. When she comes back, it has to be special and make sense. But she's family and is always welcome."

Season 11, Episode 15 of "Criminal Minds," "A Badge and A Gun," will premiere on Wednesday, Feb. 24 at 9 p.m. ET on CBS.

Watch a preview below.

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