After the events at Monroe and Rosalee's wedding, Nick is faced with losing his identity as a Grimm. Hank and Juliette join Nick as they try to figure out how to deal with Trubel as she faces the consequences of a heinous murder she committed, and a new threat arrives in Portland to steal the memories of its victims, leaving them in a state of dementia. (NBC)
U.S. air dates are in MM.DD.YY form. U.K. air dates are in DD.MM.YY form.