As samurais served as protection way back in the day, Ghost Dog has sworn his allegiance to a mafia boss, Louie, who once saved his life. Unfortunately, the higher-ups decide Louie has to go and Ghost Dog has a problem with that as he lays down a lot of samurai whoopings. That results in the mob now hunting him down.
The movie is not very in-depth and is pretty mindless, but it's a decent watch. And hey, how intriguing is watching a movie about a samurai Forest Whitaker?