After last season's cliffhanger ending, it's been a long couple of months for fans of NBC's "Grimm," but the wait is finally over. The show returns Monday, August 13 at 10 p.m. ET, and HuffPost TV has an exclusive first look at the supernatural series' dramatic season premiere, which sees Nick (David Giuntoli) coming face to face with the mother he believed dead for the past 18 years (Mary Elizabeth Mastrantonio).

There's not much time for a tearful reunion, however, since the arrival of Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner) sends Momma Burkhardt into "alpha Grimm" mode; as far as she knows, Grimms and Wesen do not socialize -- Grimms cut their heads off. Awkward.

Here's the episode synopsis for "Grimm" 201, entitled "Bad Teeth":

After their face-off with Kimura (guest star Brian Tee), Nick (David Giuntoli) finds himself trying to come to grips with the return of his mother, Kelly Burkhardt (guest star Mary Elizabeth Mastrantonio). A trail of brutal murders unveils a foreign conspiracy to hunt down Nick, leading to several revelations about his past. Meanwhile, Juliette (Bitsie Tulloch) still lies in her mysteriously-induced coma as Rosalee (Bree Turner) and Monroe (Silas Weir Mitchell) work tirelessly to bring her out of it safely. Elsewhere, Hank (Russell Hornsby) struggles with the shocking truths he’s recently seen and Captain Renard (Sasha Roiz) deals with unexpected family issues when his estranged brother (guest star James Frain) comes back into his life. Reggie Lee also stars.

"Grimm" Season 2 premieres August 13 at 10 p.m. ET on NBC, before moving to its regular timeslot of Fridays at 9 p.m. ET beginning September 14.

Are you excited for the return of "Grimm"? What other secrets do you think Nick's mother might be hiding? Weigh in below!

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  • "Grimm" Season 2

    Pictured: (front) David Giuntoli as Nick Burkhardt, Bree Turner as Rosalee; (l-r) Russell Hornsby as Hank Griffin, Reggie Lee as Sgt. Wu, Sasha Roiz as Cpt. Renard, Bitsie Tulloch as Juliette Silverton, Silas Weir Mitchell as Monroe -- (Photo by: Michael Muller/NBC)

  • "Grimm" Season 2

    Pictured: Bitsie Tulloch as Juliette Silverton -- (Photo by: Michael Muller/NBC)

  • "Grimm" Season 2

    Pictured: Russell Hornsby as Hank Griffin -- (Photo by: Michael Muller/NBC)

  • "Grimm" Season 2

    Pictured: Silas Weir Mitchell as Monroe -- (Photo by: Michael Muller/NBC)

  • "Grimm" Season 2

    Pictured: Bitsie Tulloch as Juliette Silverton -- (Photo by: Michael Muller/NBC)

  • "Grimm" Season 2

    Pictured: Reggie Lee as Sgt. Wu -- (Photo by: Michael Muller/NBC)

  • "Grimm" Season 2

    Pictured: Sasha Roiz as Cpt. Renard -- (Photo by: Michael Muller/NBC)