On the island of Kyushu in Japan, one of the country's last remaining families of Samurai sword makers are continuing a tradition their ancestors began nearly three centuries ago. Working with his brother and son, Shiro Kunimitsu is dedicated to perfecting the art of producing swords of exceptional sharpness and durability. This film follows Shiro and his family as they lovingly craft a sword - a process that takes many months. We discover the importance of the sword in the ancient Samurai code, its enduring spiritual and symbolic power, and the challenges facing the dwindling numbers of sword makers in Japan today.