In the movie "Chen Zhen – The Tokyo Fight," Chen Zhen, a skilled martial artist and disciple of a Chinese martial arts school, is sent to Japan by his disciples to learn advanced technology. However, upon arriving in Japan, he discovers that numerous Chinese men have gone missing under mysterious circumstances.
Concerned about the safety of his fellow countrymen, Chen Zhen teams up with his friend Liang Shaowen to investigate the truth behind these disappearances. They uncover a hidden network of murders orchestrated by the Black Dragon Society, a powerful organization in Japan. As they delve deeper into the investigation, they realize that the Black Dragon Society is utilizing advanced technology to carry out their sinister agenda.
Chen Zhen confronts the main leader of the Black Dragon Society, Ito Shinji, who is determined to eliminate anyone who poses a threat to their plans. Alongside his allies, including President Yamada Shinan, a prominent figure in Japan, Chen Zhen engages in intense and wistful battles against the Black Dragon Society members.
Throughout their fight, Chen Zhen and his allies gradually unravel the conspiracy of the Black Dragon Society. They discover that the organization has been secretly operating a hidden laboratory in Japan, where they conduct dangerous experiments and develop weapons using advanced technology. Realizing the grave threat this poses, Chen Zhen and his team decide to take a decisive action to dismantle the Black Dragon Society's plans.
With fierce determination, Chen Zhen leads a final assault on the Black Dragon Society's headquarters, aiming to not only put an end to their conspiracy but also destroy the illicit laboratory they have been operating. In a climactic battle, Chen Zhen's martial arts prowess is showcased as he defeats numerous adversaries, including Ito Shinji himself.
Ultimately, Chen Zhen's efforts pay off as they succeed in disintegrating the Black Dragon Society's conspiracy, preventing further harm to innocent Chinese men and dismantling the dangerous technology-driven operation in Japan. This triumph not only ensures justice but also symbolizes the strength and resilience of the Chinese people against external threats.