This Friday, Jan. 10 will mark the premiere of an all-new "Grimm" on NBC featuring Wesen street gangs and an epic fight scene between Dr. Juliette Silverton against the jerk that beat up her friend in last week's episode.

In the buildup to the upcoming episode, which is titled "Eyes of the Beholder," NBC released an exclusive clip featuring Nick's feisty girlfriend Juliette kicking some major butt. We were first introduced to Drang-Zorn in back in Season 2, and this week another member of the Wesen species arrives to go head-to-head with Juliette, reports Dread Central. He may be a big, strong Wesen, but the video show that the waifish veterinarian will drop him like a bad habit.

The plot will also thicken after the death of a notorious gang member reveals a new side of the Wesen community.

According to a press release, the official teaser for the upcoming episode states that "Nick (David Giuntoli) and Hank (Russell Hornsby) are called to the scene of a gang-related homicide. The case escalates as Zuri (guest star Sharon Leal), Hank's physical therapist, and her brother get caught up in the investigation.

Meanwhile, Juliette (Bitsie Tulloch) seeks advice from Rosalee (Bree Turner) in dealing with the news that her friend is Wesen. Silas Weir Mitchell and Reggie Lee also stars."

There is also an extra bonus footage of the mysterious Koschie, which has dual powers: one to heal and another to kill, from last week's episode.

"Grimm" S3E10 is scheduled to air on Friday, Jan. 10, 2014 at 9 p.m. EST. Watch the sneak peaks below.

Promo Video

Clip from Juilette's Fight Scene

Creature Profile: The Koschie