Before the West entered World War II, a Japanese death cult called the Temple of Hades is ordered to aid in the spiritual destruction of China. Their method - abduct their enemies' children and train them as killers for the Emperor. Young Vajra was especially gifted, but swears a secret oath of revenge when his brother dies. Now the greatest assassin in the temple, Vajra escapes to China and begins his quest to protect the innocent, and destroy the ones responsible for making him a living weapon. A former Shaolin monk, martial arts action star Xing Yu (aka Shi Yanneng) stars as Vajra in his first leading role.

Seven years after the apparent death of Chen Zhen, who was shot after discovering who was responsible for his teacher's death (Huo Yuanjia) in Japanese-occupied Shanghai. A mysterious stranger arrives from overseas and befriends a local mafia boss. That man is a disguised Chen Zhen, who intends to infiltrate the mob when they form an alliance with the Japanese. Disguising himself as a caped fighter by night, Chen intends to take out everyone involved as well as get his hands on an assassination list prepared by the Japanese.

In 1970, the four hundred year-old skilled samurai Saya is sent to the Kanto High School in an American military base in Tokyo by the Council, a secret society that has been hunting vampires for centuries. Saya has the appearance of a teenager but is the tormented half-breed creature with the soul of her human father and the powers and need of blood of her vampire mother. She is obsessed to face the powerful demon Onigen that killed her father. In the base, Saya saves Alice McKee, who is the daughter of General McKee and commander of the base, from the attack of several vampires. When General McKee is killed by a member of the Council, Alice runs to the hotel where Saya is lodged. They join forces and go to the countryside to chase Onigen.

In China, the poor worker Tietou repairs tractors and misses his sweetheart Xiu Xiu, back in Japan, she having never sent any news to her family or him. While illegally emigrating to Japan, Tietou loses his Chinese documents and so cannot return to his country. He is welcomed by his countrymen who lodge and work in Shinjuku where they also help him to find illegal work. While running from a police raid through the sewage system where Chinese are illegally working, Tietou saves Inspector Kitano from drowning in the dirty water. Later, after an incident with his cousin, Joe, and a Taiwan gang, Tietou saves the powerful Yakuza boss Toshinari Eguchi. He is the husband of Xiu Xiu, who is now called Yuko and are parents of a little daughter. The mobster offers a dirty job to Tietou; in retribution, he promises to deliver the quarter dominated by the Taiwan gang to him. Tietou becomes the boss of the Chinese illegal immigrants...