ScreenSpy - big news from the small screen
Don't Miss

IMAGES: Grimm 4×20 “You Don’t Know Jack”

By on April 21, 2015
Pictured: (l-r) David Giuntoli as Nick Burkhardt, Reggie Lee as Sgt. Wu -- (Photo by: Scott Green/NBC)

Pictured: (l-r) David Giuntoli as Nick Burkhardt, Reggie Lee as Sgt. Wu -- (Photo by: Scott Green/NBC)

Nick chases down a lead on what appears to be a clever copycat killer in Grimm‘s May 1 episode.

In “You Don’t Know Jack” 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.

And Juliette decides to help her new ally even if it means hurting those around her.

The “You Don’t Know Jack” episode of Grimm airs Friday, May 1 (8-9 p.m. ET) on NBC.

First Look images follow below.

GRIMM -- "You Don't Know Jack"

Picture 1 of 13

GRIMM -- "You Don't Know Jack" Episode 420 -- Pictured: Bitsie Tulloch as Juliette Silverton -- (Photo by: Scott Green/NBC)

Hottest Stories from Around the Web