Grimm - Headache
While investigating a grisly murder, Nick and Hank get closer to uncovering the identity of the serial killer while Wu's life is put in grave danger. Having turned down Monroe and Rosalee's offer, Juliette solidifies a new alliance as she works to get her revenge. Elsewhere, Trubel makes a surprising return to Portland.
- Season: 4
- Episode: 21
- Runtime: 60
- Aired: May 8th, 2015 at 20:00