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When police officer Alvin loses both his star witness and his wife to drug kingpin (and ninja assassin) Rudolph, he vows to get revenge. Travelling to Hong Kong, hot on Rudolph’s trail, he teams up with local investigators Gordon, Vivian and Jackie. Meanwhile, a young street punk named Edmund is hunting for the man who killed his father. Could they all possibly be searching for the same person?
A Hong Kong cut and paste edit of the 1984 Taiwanese Film 女太保 (A Rouge Girl) with new ninja scenes.

How to Watch Ninja Operation - Knight and Warrior Legally and Safely

If you want to stream Ninja Operation - Knight and Warrior through reputable and legal services, there are a few good options depending on where you are. Subscription platforms like HBO Max, Disney+, Netflix, Amazon Prime Video, and Apple TV+ sometimes carry Ninja Operation - Knight and Warrior films or related DC titles—though availability depends on your country.

If you’d rather not commit to a subscription, there are ad‑supported, free (but legal) platforms such as Tubi, Pluto TV, Peacock or Crackle (where available in your region) that occasionally host superhero films.

Lastly, don’t forget about library‑linked streaming options like Kanopy or Hoopla (if your library or university is registered), and official uploads by film distributors on YouTube—these can also give you legal access to classic movies.