A thief makes a disturbing discovery in the house where he breaks in. Later, when he returns to the same house with his partner in crime, things are no longer how he expected.

After Portland homicide detective Nick Burkhardt discovers he's descended from an elite line of criminal profilers known as "Grimms," he increasingly finds his responsibilities as a detective at odds with his new responsibilities as a Grimm.

A homicide detective discovers he is a descendant of hunters who fight supernatural forces.