Bullet follows detective Frank "Bullet" Marasco (Danny Trejo) as he takes the law into his own hands when his grandson is kidnapped by notorious drug baron Carlito Kane. The plot thickens when Governor Johnson's daughter and her boyfriend are also taken hostage, leading to a cat-and-mouse game between Bullet and Kane's men. In the end, Bullet becomes a vigilante, tracking down and killing Kane's henchmen until finally facing off against the villain in a bloody showdown.