NBC has released some preview images and an official description for "Revelation," the new episode of Grimm scheduled to air this Friday, February 28.
Here's how they describe it:
THE SEARCH FOR A SCALP COLLECTING SERIAL KILLER CONTINUES AS MONROE'S BATTLE AT HOME INTENSIFIES -- SHOHREH AGHDASHLOO, ALEXIS DENISOF, CHRIS MULKEY AND DEE WALLACE GUEST STAR -- Monroe (Silas Weir Mitchell) fights an impossible battle to convince his parents (guest stars Dee Wallace and Chris Mulkey) to embrace the life choices he's made. Meanwhile, Nick (David Giuntoli) turns to Juliette (Bitsie Tulloch) to help him figure out the Wesen aspect of his cop-killing scalper investigation. On the Royal Baby front, Captain Renard (Sasha Roiz) learns new information that forces him to contact Adalind (Claire Coffee) in the interest of keeping her and the baby safe from Viktor (guest star Alexis Denisof). Russell Hornsby and Reggie Lee also star.
Here are the photos: