Taraji P. Henson is a well-equipped killer in the new trailer for Proud Mary. Directed by Babak Najafi, the Sony/Screen Gems actioner stars Henson as the titular hit woman who works for an organized crime family in Boston. Her life is completely turned around by a young boy whose path she crosses when a professional hit goes bad. Billy Brown, Jahi Di'Allo Winston and Danny Glover are also among the cast. Proud Mary hits theaters Jan. 12.