The preview for the next episode, 'Derek,' of Criminal Minds shows a pretty twisted plot involving Derek Morgan (Shemar Moore).

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The clip introduces guest star Danny Glover as Derek's dad, and reveals the BAU member tied up and being tortured by some men. Derek keeps shuttling in and out of flashbacks, from the moments of torture to the now, where his father is heard talking to him. It is still unclear what kind of role his father plays in his life, is it a positive one where he is helping him overcome some past trauma or is negative in that he is inducing and evoking that trauma in Derek's life again.

In an interview with TVLine Criminal Minds showrunner Erica Messer dished about Derek's character arc and about the next episode dedicated to the character.

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"There is a lot going on with Derek," she said. "He's really taking up our emotional head space for a good chunk of this midseason stretch."

In fact a heavy weight has been enlisted to play Derek's father in the episode, titled Derek. TVLine recently revealed that Danny Glover will guest star as Derek's dad in an episode, titled Derek. Showrunner Erica Messer also weighed in on this starry addition for the episode. "It's an interesting role that he plays," Messer said. "The reason Derek needs to call on this protector in this moment and work through some things is really beautifully written by Breen Frazier, and directed by [cast member] Thomas Gibson."

'Derek' will be directed by Thomas Gibson and is set to air on March 2.

Watch the preview: