Five Element Ninjas

Five Element Ninjas Chinese title is a 1982 Shaw Brothers kung fu film directed by Chang Cheh. It was released in North America as Chinese Super Ninjas. When a Chinese martial arts school finds itself outclassed by their rivals, they hire elite ninja from Japan to destroy the school. The lone survivor of the massacre learns the secrets of ninjutsu and seeks revenge against the ninja.

As Zeng recuperates, he receives a challenge from the FiveElement Ninjas. Suspecting a trap, he keeps two of his best students, Sheng and Tian Hao, at the school to guard it against an invasion and sends ten others to do battle. As Sheng and Hao help to reinforce the schools defenses and set traps, the ninjas use trickery and guerrilla warfare to defeat their opponents. Hong is overjoyed, but the leader of the ninja, Cheng Yun Mudou, advises that they push their advantage to destroy Zengs school. Hong agrees, and Mudou sends a female spy, Senji, to infiltrate the school. Sheng convinces a reluctant Hao to take her in after they save her from being beaten.Senji secretly makes a map as she takes various jobs around the school. Distrustful of her, Hao accuses her of hiding his weapon when she cleans his bedroom and demands to tastetest the soup that she has poisoned before letting her serve it to Zeng to maintain her cover, she intentionally drops it. Once Senji completes her map, she smuggles it to Mudou. That night, Senji offers herself to Sheng, who refuses to take advantage of her, though he agrees that she may play a song for him on her flute. Under the cover of her fluteplaying, Mudous ninja attack the camp, killing many of the students before they are aware of the assault. Senji reveals herself as a spy and mortally wounds Sheng before he can rush to Haos aid. Mudou kills Sheng and Zeng Hao, who Senji requests they take prisoner, is the only survivor. ........

Source: Wikipedia