Is Nick up against a ghost - or a killer who thinks she is a ghost?
Teenage geniuses are being mauled, while Renard's obsession with Juliette grows.
This year’s Halloween TV offerings are surprisingly slim. Most of the returning sitcoms are not doing new Halloween episodes, and a few of the new shows I wonder if they will be around by Halloween
A little girl and her father go on the run, but from what?
Angelina is back, and she has been hired to kill Monroe.
A preacher with an ulterior motive leads his flocks to the slaughter - figuratively and literally.
Actress Kate del Castillo joins 'Grimm' for their Halloween episode.
A plague spreads through the Wesen community.
Nick is forced to tell Hank the truth about Grimms and Wesens.
Nick is now a suspect in the FBI agents' deaths.