The synopsis of the upcoming episode of season 11 of Criminal Minds was recently revealed.

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The episode, titled 'Internal Affairs,' is going to show the BAU to help the NSA out to help track two DEA agents who went missing. But Hotch (Thomas Gibson) is going to have bigger plans, and hopes to get the NSA to help get to the hitmen, The Dirty Dozen.

Here's the official synopsis:

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"The assistance of Hotch and the BAU is enlisted by the NSA when two DEA agents, working undercover, are killed and another is missing. They investigate the possibility that this is the work of an underground cyber-drug ring. Meanwhile, Hotch is hopeful that in working with the NSA, he can further propel the investigation of the group of hitmen targeting "The Dirty Dozen"."

The preview of the episode hasn't been revealed yet.

Meanwhile it seems like Dr. Tasha Lewis (Aisha Harris) won't be back on the series anytime soon. In an interview showrunner Erica Messer revealed that while Tyler had signed on for only six episodes -- essentially to make up for A.J. Cook's absence during this period -- they were hoping to extend her contract and stick on for a while. Speaking to The Hollywood Reporter, Messer revealed her intentions for Tyler, who has joined Criminal Minds in the part of Dr. Lewis, who is a forensic psychologist:

"She's a forensic psychologist whose expertise has been studying and interviewing serial killers once they've been caught to see if they are able to stand trial. It's a different skill set than our team in the field touching these guys, but she's up of the challenge for that and really excited to join the best unit out there.

For those six episodes that AJ is gone and JJ is on maternity leave, Aisha will be our female in the fold with the team and helping them solve the cases. We love her so much that we're hoping to extend her stay with us. The deal is not totally done yet so I can't really talk about it but we are hoping to have her in quite a few more episodes this season, not just the initial six."

'Internal Affairs' will air on Dec. 2 on CBS.

Watch the preview for the latest episode:

Tags: Criminal Minds CBS television