Watched "Zerstorer Shrugged", the penultimate episode of Grimm.  Diana opens the portal so that Nick and Eve can come back through. Unfortunately that is exactly what the Zerstorer wants so that he can also come through, and he does so at a gas station where he kills two men. Nick, Adalind, and Captain Renard take Diana and Kelly to the cabin in the woods, where the children are ensconced in the basement bedroom. Diana has a vision and tells Captain Renard and Adalind that the Zerstorer wants to take not only her but baby Kelly as well.

Trubel arrives from the Hadrian's Wall headquarters and reports that Black Claw is done and that the Wesen war is over. Monroe, Rosalee, Eve, and Trubel do further research in the spice shop basement and determine that the staff that the Zerstorer carries has a missing piece, and that that piece is the healing stick in Nick's possession.

The Zerstorer goes to the police station, where Nick, Hank, and Sergeant Wu are. He massacres the personnel and kills Hank and Sergeant Wu.