Grimm Season 4
Grimm Season 4 premieres today NBC

NBC's supernatural show Grimm returns with its 4th Season today, 24th October at 9:00 pm EST.

The premiere episode is titled Thanks For The Memories, where Nick, after losing his Grimm powers in the last season, tries to cope with his new reality. This is in the backdrop of an attack on Portland by a new Wesen, who can steal its victims' memories.

Click here to watch the premiere episode online.

The full episode synopsis reads:

After the events at Monroe (Silas Weir Mitchell) and Rosalee's (Bree Turner) wedding, Nick (David Giuntoli) is faced with losing his identity as a Grimm. Hank (Russell Hornsby) and Juliette (Bitsie Tulloch) join Nick as they try to figure out how to deal with Trubel (guest star Jacqueline Toboni) as she faces the consequences of a heinous murder she committed. Meanwhile, when Wu (Reggie Lee) arrives at the scene, his discoveries bring back images of his traumatic encounter. A new threat arrives in Portland to steal the memories of its victims, leaving them in a state of dementia. Elsewhere, Captain Renard's (Sasha Roiz) life hangs in the balance and Adalind (Claire Coffee) falls into Prince Viktor's (guest star Alexis Denisof) trap as she desperately searches for her baby.

David Giuntoli previewed Nick's journey in the upcoming season, and talked about how he is going to be handling the fact that he is no longer a Grimm.

Giuntoli told Collider: "Grimm powers are gone from Nick, and he's enjoying his new normalcy, in a lot of ways, but he also knows that the Wesen are out there. So first and foremost, he's going to be using Trubel as his seeing eye Grimm."

Watch a promo here.