The season finale of Grimm is called "Goodnight, Sweet Grimm" and we can expect it next Tuesday, May 21. Here's how NBC describes it:
THE ROYALS BRING THEIR AGENDA FOR NICK TO PORTLAND - JAMES FRAIN AND SHOHREH AGHDASHLOO GUEST STAR -- Just when things look like they're back to normal with Juliette (Bitsie Tulloch), Nick (David Giuntoli) is called to investigate a flurry of rage-fueled assaults happening all over Portland. He goes to Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner) for help battling Portland's newest wave of "undead." As if that weren't enough, Captain Renard (Sasha Roiz) informs Nick that his brother Eric (guest star James Frain) is in town on family business. Meanwhile, Stefania (guest star Shohreh Aghdashloo) and Frau Pech methodically use their alliances with Adalind (Claire Coffee) to battle one another. Russell Hornsby and Reggie Lee also star.
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