Watched "Map of the Seven Knights" from Grimm. In Germany, an antique dealer sends a trunk full of Grimm books and weapons to an antiquarian book owner who happens to be Monroe's Uncle Felix. The dealer is murdered by Black Claw Wesen who want to get hold of the trunk. Felix travels to Portland to show one of the books to Monroe and his friend Nick, who he knows is a Grimm. The rest of the stuff he ships to Portland. Black Claw Wesen in Portland murder Felix in his hotel room and get the lading bill for the trunk shipment. They are intercepted and killed at the customs office by Nick and Monroe.

In the basement of the spice shop, Nick, Monroe, Rosalee, Trubel, and Hank inspect the contents of the trunk. "Looks like we got our trailer back." In one of the books they find Grimm family trees that include Nick and possibly Trubel. Monroe discovers that the lock of the trunk is exceptionally huge. When he disassembles it, he find three keys inside.They now have five keys, and proceed to make prints to add to the map they already have.

They plan to travel to the Black Forest, in Germany, where something important must be buried.