Nick's about to get into big trouble - Bigfoot trouble, that is. On Friday's Grimm
(9/8c, NBC), Nick (David Giuntoli
) begins to investigate a mysterious case in which the suspected Wesen (guest star Kenneth Mitchell
) is suffering from a mysterious malady that prevents him from returning to his human form completely. A therapist (guest star Roger Bart
) attempts to suppress the creature within. Unfortunately, science isn't quite up to ...