Grimm is back with its season four finale on Friday, May 15th, with the episode 4×22 ‘Cry Havoc’; check out some promotional pictures below!

SPOILERS

TRAILER

Plot summary – On the heels of a shocking discovery, Nick (David Giuntoli) is hell bent on getting revenge and taking the fight to the Royals with help from Trubel (guest star Jacqueline Toboni). Meanwhile, Juliette’s (Bitsie Tulloch) alliance continues to lead her down a dark path. Russell Hornsby, Silas Weir Mitchell, Sasha Roiz, Reggie Lee, Bree Turner and Claire Coffee also star. Original airdate 15/05/2015.

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Photos Courtesy of NBC.