In the midst of World War II, a lone prospector encounters Nazis in the northern reaches of Finland. When the Nazis pilfer his gold, they soon realize he's no typical miner. Although the Finnish term "sisu" lacks a direct translation, this former commando of legend will epitomize its essence: a resolute courage and unwavering determination in the midst of daunting challenges. As a one-man death squad, he'll go to extreme measures to reclaim his gold, even if it entails eliminating every last Nazi in his way.