"grimm" Endangered(2013) Apr 2026

Nick must protect the couple from the hunter while keeping their true nature hidden from his partner, Wu, and the general public. Key Wesen Introduced

" Endangered " is the 19th episode of the second season of the supernatural drama series Grimm , which first aired on April 30, 2013. The episode blends local police procedural elements with the show's signature Wesen mythology, specifically introducing a "glowing" creature linked to cattle mutilations. "Grimm" Endangered(2013)

The "aliens" are revealed to be a rare, skittish Wesen species called Glühenvolk . They possess bioluminescent skin that glows in the dark, which historically led humans to mistake them for extraterrestrials. Nick must protect the couple from the hunter