To learn China's secrets behind their Martial Arts techniques, Japan's authorities launch a risky, dangerous mission: send a spy into China, disguised with gifts for The Great Emperor. On the long journey into enemy territ... more »ory, their caravan is ambushed - single handedly - by the greatest fighter they've ever seen...but the elusive ninja says there's another fighter even better than he is. One who needs no weapons, and fights only to kill. A fighter so powerful, he alone poses a threat to Japan's security...« less