Babylon A. D. is about a mercenary named Toorop (Vin Diesel) who, although reluctant, accepts a job to transport a girl named Aurora (Mélanie Thierry) along with her nanny (Michelle Yeoh) from Asia to New York in the United States. Little does he know that the girl Aurora has something special about her and that she is harboring something in her. Toorop also does not know that there are people hunting her down and that there would be many obstacles and problems he will have to face just to make it to the United States alive with the girl and her nanny.