Legendary samurai Jubei Yagyu must face off against a necromancer and his army of the undead in order to rescue Ohiro the young ninja girl from the clutches of Inshun Hozoin, the evil man slated to become lord of darkness on the eve of Armageddon. No living man is a match for Jubei's sword, but what skill can this mythic swordsman employ to defeat an army of the undead?
Set in 16th Century Japan, the film takes place against a background of civil war, with the Iga ninja being ruled over by warlord Nobunaga Oda with an iron fist, keeping them in check with harsh laws and handing out executions at will. Mika Hijii plays Ukagami, the toughest female warrior of her clan, who is sent out on a mission by the villainous ‘Lesser Ninja’ as part of his plot to take over the Iga. After his trap fails, he kidnaps her childhood friend, pushing her to go against the clan in a bloody mission of rescue and revenge.
Chuck Connors stars in this routine martial arts feature as the Colonel. He sends agents Sonny (Mike Kelly) and Dennis (George Nichols) to Taiwan in search of microfilm containing experiments on genetic engineering. The agents soon find themselves up against Japanese killers known as the Sakura who plan to sell United States secrets to the Soviet Union. Sonny and Dennis train with a martial arts master in order to fight the enemy and obtain the coveted microfilm.
A group of camouflaged ninjas stealing a small case of plutonium from a transport vehicle in broad daylight in California. Back in his office in Sanzhi, Taiwan, The Colonel (Bo Svenson) receives word of the heist and the top suspect is the Sakura family. Selected for the job of locating this stolen nuke material is Mai Lin (Page Leong), an informant/dancer. Willi (Jay Roberts, Jr.), a drunken American playboy who is prone to playing the harmonica teams up with Mai Lin. Willi also just happens to be a white ninja.
Gordon Liu stars as a Chinese martial arts student struggling to relate to his new Japanese wife. When a series of martial misunderstandings spirals into an international incident, he's forced to take on seven of Japan's most powerful martial arts masters, each an expert in a different discipline, ranging from karate to samurai to ninjitsu.