Nick the Grimm is back! See these "Grimm" season 4 photos to find out what will happen next episode.

Juliette (Bitsie Tulloch) changed into Adalind (Claire Coffee) and slept with Nick as part of the cure to get him his powers back. Although it didn't work right away, he gradually regained his Grimm sight as well as his strength and other abilities before a group of Wesens could use him as a human sacrifice for an ancient ritual.

There is just no break for the Nick (David Giuntoli). Right after reacquiring his powers, he has to deal with Gremlin-like Wesens that are determined to ruin Christmas for Portland residents in episode seven.

In Carter Matt's synopsis of "The Grimm Who Stole Christmas," Nick and Hank (Russell Hornsby) respond to a bizarre home invasion case. Monroe (Silas Weir Mitchell) plans a very special Christmas surprise for Rosalee (Bree Turner).Trubel (Jacqueline Toboni), on the other hand, will reportedly come to a life-changing decision that will affect everyone.

Watch the teaser video below. Browse through the gallery to see "Grimm" season 4 photos for next episode airing December 5, 9p.m. on NBC.