NBC has released the synopsis for episode #509 of Grimm, which you can check out below. The installment, titled “Star-Crossed,” is officially described as follows:
AN ANCIENT WESEN RITUAL CLAIMS LIVES IN PORTLAND – JACQUELINE TOBONI AND DAMIEN PUCKLER GUEST STAR – A barbaric Wesen ritual is brought to the present and Nick (David Giuntoli), Hank (Russell Hornsby) and Wu (Reggie Lee) are already five steps behind the serial killer. To aid in the investigation, Monroe (Silas Weir Mitchell) goes undercover. Meanwhile, Hadrian’s Wall’s war against Black Claw intensifies as Eve (Bitsie Tulloch) uses her unique skills to interrogate a suspect. Sasha Roiz, Bree Turner and Claire Coffee also star.
Grimm “Star-Crossed” airs Friday, February 12, at 9pm on NBC.