Grimm Season 4 Episode 20“You Don't Know Jack”

NBC · S4E20 · Aired May 1, 2015 · 60 min · ★ 6.2/10

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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