Blending traditional Chinese swordplay film with elements from Finland's sprawling national epic, the Kalevala, director A J Annila has fashioned the first ever Finnish martial arts film. Honoring both his own heritage and the conventions of Chinese wuxia film Jade Warrior tells the legend of The Sampo, created by a legendary smith to help with the love of a woman and defeat a nameless demon.
In modern day Finland, Kai is a blacksmith charged with the task of opening an ancient cask found with the mummified remains of a four thousand year old man. The metallic case is of craftsmanship well beyond anything that could possibly have been imagined in its era, a case that responds to Kai's touch, opening to release a powerful being within and triggering waves of visions that clearly link Kai to an ancient legend and to an all-powerful evil...