Here's the official guide of Grimm season 2 episode 21 "The Walking Dead". This episode airs on Tuesday, May 14 on NBC.
ZOMBIES DESCEND ON PORTLAND –
JAMES FRAIN AND SHOHREH AGHDASHLOO GUEST STAR
- Nick (David Giuntoli) and Hank (Russell Hornsby) discover a new kind of strange when they investigate suspects being found dead - for the second time.
- In Europe, Adalind (Claire Coffee) finds herself in the middle of a feud between Frau Pech and Stefania (guest star Shohreh Aghdashloo ) while working over the details of her pending transaction.
- Meanwhile, determined to remember every last detail to get things started once more, Juliette (Bitsie Tulloch) insists Monroe (Silas Weir Mitchell) share with her Nick’s darkest secret - the world of Grimms and Wesen.