Crusaders: The Black Pig is the second of two films about the urbanized aristocratic boy Rolf Bakken and his childhood friend, the pig farmer Einar. Rolf's father mysteriously disappears in the forest, and the two friends decide to revive the "Bakken & Brenno detective agency" from their childhood to investigate the case further. Together they are drawn into a dark and horrifying mystery of epic proportions.

A small town is plagued by a gnome, and the local farmers band together to confront him. 18 years later, his son shows up for revenge.