"Grimm" Season 4, Episode 4, titled "Dyin' On A Prayer," airs Friday, Nov. 14, on NBC. Claire Coffee thinks her character Adalind has changed a lot, and it's for an understandable reason. The actress also talks about the Hexenbiest "hierarchy." Meanwhile, viewers are getting curious about the Wesen FBI Special Agent Chavez (Elizabeth Rodriguez).

Spoiler alert: This update contains Grimm Season 4 spoilers. Read at your own risk if you have not watched the recent episodes or seen the promo video.

"Nick and Hank investigate the case of a victim who was asphyxiated to death... by clay pouring into his lungs. Meanwhile, Wu continues his investigation of Trubel, and Wesen objecting to inter-species marriage target Monroe and Rosalee," reads the Grimm Season 4, Episode 4 synopsis on TV.com.

Nick (David Giuntoli) remains un-grimmed, but someone will make "a major breakthrough with regards to restoring Nick's powers," says the NBC press release on this week's new episode. Louise Lombard returns as Elizabeth in Grimm Season 4, Episode 4.

"Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner) experience cultural backlash as a result of their inter-Wesen marriage," notes the NBC release, hinting at some bigger challenges to the couple, whom Nick couldn't help unless he becomes a real Grimm again. Claire Coffee also talks about Adalind's connection to Nick after the spell she has cast on him.

"It links them in a way that's going to be explosive come Episode 8. It resolves itself in quite a treacherous way and it has massive implications for a couple of the characters," Coffee told TV Line in an interview.

Coffee also told TV Line Captain Renard's (Sasha Roiz) mother, Elizabeth, is "pretty high up there on the mean girls, Hexenbiest food chain." More of this is expected to be seen in Grimm Season 4, Episode 4.

"It seems that in the Hexenbiest community, they're a very gossipy bunch. Everybody knows about everybody else. So everybody's aware of everyone else's station on the playground and their hierarchy."

Coffee also shares her thoughts on Adalind's "desperation," which the character has been showing more in Grimm Season 4. The actress explains Adalind's fear-driven decisions stems from being a mom. Adalind is someone who "never had anything to lose before," and now she does not even know where her baby is.

Meanwhile, Elizabeth Rodriguez (who is not a listed guest star in Grimm Season 4, Episode 4) is giving Grimm viewers something to think about. Fans are speculating around her character. Which side is Agent Chavez on, and what deal is she offering to Trubel (Jacqueline Toboni)?

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