Set Up

"" is the twenty-first episode of Season 5 of Grimm and the one hundred and ninth episode overall. It first aired on May 20, 2016 on NBC.

Press Release
A DEADLY SHOWDOWN IS ON THE HORIZON AS BLACK CLAW TIGHTENS ITS GRIP ON PORTLAND - SHAUN TOUB, DAMIEN PUCKLER, JACQUELINE TOBONI AND HANNAH R. LOYD GUEST STAR - Black Claw makes a strategic move against Hank (Russell Hornsby) that shocks everyone and sends Nick (David Giuntoli) on a war path. Hadrian's Wall ramps up their investigation as they seek out a mysterious man named Bonaparte (guest star Shaun Toub). Meanwhile, Adalind (Claire Coffee) and Capt. Renard (Sasha Roiz) must learn to deal with their new and very unpredictable reality with Diana (guest star Hannah R. Loyd). Bitsie Tulloch, Silas Weir Mitchell, Reggie Lee and Bree Turner also star.

Wesen

 * Blutbad
 * Fuchsbau
 * Zauberbiest
 * Half-Zauberbiest
 * Hexenbiest
 * Phansigar
 * Hundjäger
 * Siegbarste
 * Quijada Vil
 * Mauvais Dentes
 * Murciélago
 * Malin Fatal

Production Notes

 * In the press release by NBC, the title was "Beginning of the End, Part One" despite this episode and not being written as a two part finale.
 * Footage from was reused (flashback).

Continuity

 * Conrad Bonaparte reveals himself to be a full Zauberbiest.
 * Black Claw invades the Oregon compound of Hadrian's Wall.
 * Rosalee discovers that she is pregnant.

Trivia

 * This is the first episode directed by co-showrunner, David Greenwalt. Fellow showrunner, Jim Kouf directed in season 4.
 * May 20, 2016 marked the second time where two new episodes aired on the same day ( & this one). It was the first time since December 13, 2013 when and  aired back to back.
 * 521 Skyline Drive, the address of the barn where Hank was being held, is a reference to the episode number.