Grimm season 4 episode 13: Where to watch Juliette and Adalind's 'biestfight'‬ live stream online

NBC's supernatural series returns with an all new episode tonight, February 13, 2015 at 9pm.

Episode 13 is titled, Trial by Fire, in which a fiery Wesen rises in Portland.

The official synopsis reads as follows:

When an arson case looks to have Wesen origins, Nick (David Giuntoli) find himself reluctantly having to ask an old foe for help. Elsewhere, Viktor (guest star Alexis Denisof) teaches Adalind (Claire Coffee) the effectiveness of well-played diplomacy. Meanwhile, Juliette (Bitsie Tulloch) finds herself in a confrontation sooner than expected. Daniel roebuck, Gideon emery, Garcelle Beauvais and Alexis denisof guest star

NBC has released a new clip from the upcoming episode, where Adalind confronts Juliette about helping Nick's mother abduct her baby daughter Diana away from her.

Another clip shows both the Hexenbiests fighting each other, after Adalind says, "thanks for that one night with Nick."

Previously, Bitsie Tulloch, who plays Juliette teased a potential 'biestfight‬' between Juliette and Adalind, now that both are Hexenbiests.

Tulloch told Entertainment Weekly: "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."

Watch all the promos here:

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