Grimm season 4
The cast of hit NBC series Grimm Season 4 Grimm/Facebook

Grimm season 4 returns with an all new episode tonight, February 6, 2015 on NBC.

Episode 12 is titled, Maréchaussée, in which a Wesen bounty hunter tries to kill Nick.

Click here to watch it online.

The official synopsis reads as follows:

Nick (David Giuntoli) and Hank (Russell Hornsby) investigate a series of murders that lead back to the Wesen Council and a mysterious bounty hunter (guest star Arnold Vosloo). Elsewhere, Juliette's (Bitsie Tulloch) meeting with Henrietta (guest star Garcelle Beauvais) brings about more disturbing news than she was expecting. Meanwhile, Adalind (Claire Coffee) and Viktor (guest start Alexis Denisof) make their way back to Portland. Silas Weir Mitchell, Reggie Lee, Sasha Roiz and Bree Turner also star.

Grimm season 4
Bitsie Tulloch as Juliette and David Giuntoli as Nick in NBC series Grimm. Grimm/Facebook

Bitsie Tulloch teased that Juliette's Hexenbiest secret will be out in the open and dished on a potential showdown between Juliette and Adalind.

Tulloch told Entertainment Weekly: "The fans really seem to like the new Hexenbiest Juliette. I think they're really, really, really going to love that showdown. Because we've really been waiting four seasons for a showdown. Adalind has been making Juliette's life miserable since season one. She's not just your gun-toting veterinarian who's threatening but maybe not that threatening—now she's uber threatening and dangerous."

Grimm season 4
Claire Coffee as Adalind in NBC Series Grimm facebook/NBC

She added, "It's a pretty big tease that the witch fight between Adalind and Juliette is coming up sooner than later, and also Juliette isn't going to be able to keep her secret from Nick forever. It's pretty dramatic when he finds out."

NBC has renewed Grimm for a fifth season for 2015-16.

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