How did what started as an obscure Jewish sect evolve in under 400 years to become the official religion of the Roman Empire and literally change the world? This "Frontline" documentary tracks the first millennium of Christianity's growth, from the ministry of Jesus, through the variety of beliefs that grew into a unified theology, to the rise of the Roman Catholic Church. 4 hrs. total. Standard; Soundtrack: English Dolby Digital Surround stereo.