Image Gallery and Preview of Grimm Episode 4.20 – You Don’t Know Jack


With everything else that’s going on, the last thing our favorite “Grimm” needs in his life is a copycat Jack the Ripper, but that’s exactly what’s heading his – and our – way in next week’s Episode 4.20, “You Don’t Know Jack.” We do, however, know Nick; and our money’s on him figuring it all out with exactly 10 minutes left to go in the ep.

Check out over a dozen photos and a preview of “You Don’t Know Jack,” and start counting down to what’s sure to be a doozy of a season finale.

“Grimm” Episode 4.20 – “You Don’t Know Jack” (5/1/15; 8-9 pm)
A SERIES OF CONNECTED MURDERS LEADS EVERYONE TO THINK A COPYCAT IS ON THE LOOSE  – 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) encounter a situation they never expected.

Meanwhile, Adalind (Claire Coffee) and Rosalee (Bree Turner) must work together in 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. Garcelle Beauvais and Nico Evers-Swindell guest star.

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