Grimm › Season 4 › Episode 21

Grimm Season 4 Episode 21“Headache”

NBC · S4E21 · Aired May 8, 2015 · 60 min · ★ 6.5/10

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.

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Grimm season 4 episodes

Thanks for the Memories Oct 24, 2014
Octopus Head Oct 31, 2014
Last Fight Nov 7, 2014
Dyin' on a Prayer Nov 14, 2014
Cry Luison Nov 21, 2014
Highway of Tears Nov 28, 2014
The Grimm Who Stole Christmas Dec 5, 2014
Chupacabra Dec 12, 2014
Wesenrein Jan 16, 2015
Tribunal Jan 23, 2015
Death Do Us Part Jan 30, 2015
Maréchaussée Feb 6, 2015
Trial by Fire Feb 13, 2015
Bad Luck Mar 20, 2015
Double Date Mar 27, 2015
Heartbreaker Apr 3, 2015
Hibernaculum Apr 10, 2015
Mishipeshu Apr 17, 2015
Iron Hans Apr 24, 2015
You Don't Know Jack May 1, 2015
Headache May 8, 2015
Cry Havoc May 15, 2015