 Two warring clan leaders challenge each other to a tournament involving their best fighters. One clan loses heavily, and in revenge employs the services of the Five Element Ninjas, whose fighting styles are based on the five Chinese elements (gold, wood, water, fire and earth). The ninjas dutifully defeat the hitherto victorious clan and then turn on their employers. It seems as though the ninjas are set to rule the martial world - but the sole surviving member of the clans meets up with an old man who alone knows the secret of how to defeat the ninjas...