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Episode guide

S4·E20 You Don't Know Jack

Episode
Season 4, Episode 20
Air Date
May 1, 2015
Runtime
43 minutes
Director
Terrence O'Hara
Writers
Sean Calder, Michael Golamco
Score
7.2/10 (20 TMDB votes)
Story Type
Core Character Arc
Core Aired May 1, 2015 43 min ★ 7.2/10 · 20 TMDB votes

Narrative Classification: Standard continuity chapter maintaining character development and season progression.

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Synopsis

A string of homicides have the press asking Captain Renard if a Jack the Ripper copycat has arrived in Portland. While dealing with the investigation, Nick, Hank, Monroe and Wu deal with a situation they never expected. Meanwhile, Adalind and Rosalee must work together on a last ditch attempt to fix Juliette's condition. Elsewhere, Juliette decides to help her new ally even if it means hurting those around her.

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Director & writers

Guest stars

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Frequently Asked Questions

When did Season 4 Episode 20 of Grimm air?

Season 4, Episode 20 ('You Don't Know Jack') originally aired on May 1, 2015.

How long is Season 4 Episode 20 ('You Don't Know Jack')?

The runtime for this episode is approximately 43 minutes.

What happens in Grimm Season 4 Episode 20?

A string of homicides have the press asking Captain Renard if a Jack the Ripper copycat has arrived in Portland. While dealing with the investigation, Nick, Hank, Monroe and Wu deal with a situation they never expected. Meanwhile, Adalind and Rosalee must work together on a last ditch attempt to fix...

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