Is Jack the Ripper in Portland? Grimm round up for "You Don't Know Jack"

Well, it seems that the legendary "Jack the Ripper" is back....in Portland. And our Grimm boys have to track him down. Seems a little tricky though without the books in the fired trailer....or not? And then there's the possible cure for Juliette - will it work? We have to find out.

Here's what you have to know about this Friday's new episode.

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.