You Don't Know Jack

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Template:Episode Template:Episode Quote "You Don't Know Jack" is the twentieth episode of Season 4 of Grimm and the eighty-sixth episode overall. It first aired on May 1, 2015 on NBC.

Synopsis

Press Release

A SERIES OF CONNECTED MURDERS LEAD EVERYONE TO THINK A COPYCAT IS ON THE LOOSE - GARCELLE BEAUVAIS AND NICO EVERS-SWINDELL GUEST STAR - A string of homicides have the press asking Captain Renard (Sasha Roiz) if a Jack the Ripper copycat has arrived in Portland. While dealing with the investigation, Nick (David Giuntoli), Hank (Russell Hornsby), Monroe (Silas Weir Mitchell) and Wu (Reggie Lee) deal with a situation they never expected. Meanwhile, Adalind (Claire Coffee) and Rosalee (Bree Turner) must work together on a last ditch attempt to fix Juliette's (Bitsie Tulloch) condition. Elsewhere, Juliette decides to help her new ally even if it means hurting those around her.

Guest stars

Actor	Role
Nico Evers-Swindell	Kenneth
Garcelle Beauvais	Henrietta
Danny Bruno	Bud Wurstner

Wesen

• Blutbad
• Fuchsbau
• Half-Zauberbiest
• Hexenbiest
• Eisbiber
• Klaustreich

Videos

Select scene

Production Notes

• Footage from "Pilot", "Game Ogre", "The Kiss", "The Bottle Imp", "Wesenrein", and "Hibernaculum" is reused (flashbacks).

Continuity

• Bud meets Adalind for the first time.
• The first female Klaustreich is seen.
• The trailer is badly damaged, but not all of its contents have been destroyed; subsequently, the remaining items, including some of the Grimm diaries and weapons, are moved to the spice shop basement.
• It is revealed that Lauren Castro did not succeed in her campaign to become the mayor of Portland.

Trivia

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