Grimm Season 4, Episode 21 - ERICA

Grimm: Season 4, Episode 21
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.

Writing:

Jim Kouf
David Greenwalt
Stephen Carpenter

Stars:

Release Date: 2011-10-28
Seasons: 1 2 3 4 5 6

Metacritic: 7.8/10
TMDb: 8.3/10

Country: US
Language: English
Runtime: 45

Other episodes for this season

Thanks for the Memories — Episode 1 - Thanks for the Memories

Octopus Head — Episode 2 - Octopus Head

The Last Fight — Episode 3 - The Last Fight

Dyin' on a Prayer — Episode 4 - Dyin' on a Prayer

Cry Luison — Episode 5 - Cry Luison

Highway of Tears — Episode 6 - Highway of Tears

The Grimm Who Stole Christmas — Episode 7 - The Grimm Who Stole Chris...

Chupacabra — Episode 8 - Chupacabra

Wesenrein — Episode 9 - Wesenrein

Tribunal — Episode 10 - Tribunal

Death Do Us Part — Episode 11 - Death Do Us Part

Maréchaussée — Episode 12 - Maréchaussée

Trial by Fire — Episode 13 - Trial by Fire

Bad Luck — Episode 14 - Bad Luck

Double Date — Episode 15 - Double Date

Heartbreaker — Episode 16 - Heartbreaker

Hibernaculum — Episode 17 - Hibernaculum

Mishipeshu — Episode 18 - Mishipeshu

Iron Hans — Episode 19 - Iron Hans

You Don't Know Jack — Episode 20 - You Don't Know Jack

Headache — Episode 21 - Headache

Cry Havoc — Episode 22 - Cry Havoc