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.
With the arrival of the mysterious and powerful demon Zerstorer, Nick must fight to protect not just his loved ones but all of humanity. Alongside his friends Monroe, Rosalee, and Hank, Nick must also navigate the dangerous politics of the Wesen world, where old grudges and power struggles threaten to tear everything apart. As Zerstorer’s power grows stronger, Nick and his allies travel to different realms and encounter new and dangerous creatures. But with the fate of the world at stake, they cannot afford to fail. Along the way, Nick is forced to make difficult choices and confront the darkest parts of himself, all while keeping his loved ones safe and protecting the innocent.
In the climactic final battle, Nick faces off against Zerstorer in an epic showdown that will determine the fate of the world. With everything on the line, Nick and his allies must use all of their strength, courage, and wits to save humanity from destruction.