Grimm - Season 2 - Eps 19: Endangered
Mysterious cow mutilations and reports of glowing creatures put Nick on a case that forces him to question the existence of aliens within the Wesen world. He also meets a strange UFO expert who seems to know more than he’s letting on. Meanwhile, Nick digs further into the key, and Juliette’s romantic memories of Nick start coming back in a big way.
About Grimm

Title: Grimm
First Air Date: 2011-10-28
Last Air Date: 2017-03-31
Status: Ended
Rating: 8.3/10 (from 3274 votes)
Language: EN
Seasons: 7
Total Episodes: 122
Network: NBC
Genres: Drama, Mystery, Sci-Fi & Fantasy
Production Companies: Universal Television, Hazy Mills Productions, Universal Media Studios
Synopsis
After Portland homicide detective Nick Burkhardt discovers he's descended from an elite line of criminal profilers known as "Grimms," he increasingly finds his responsibilities as a detective at odds with his new responsibilities as a Grimm.
Cast

David Giuntoli
Nick Burkhardt

Silas Weir Mitchell
Monroe

Russell Hornsby
Hank Griffin

Sasha Roiz
Sean Renard

Reggie Lee
Drew Wu

Bree Turner
Rosalee Calvert

Claire Coffee
Adalind Schade

Elizabeth Tulloch
Eve