Watch TB: Return of the Plague for Free: How to Stream the Movie Online at 123Movies. . TB is the most deadly infectious disease in history - it has killed over a billion people in the last 200 years. Multi-BAFTA winning film-maker, Jezza Neumann travelled to Swaziland to make this very intimate account of the crippling effects of MDR-TB. We witness victims from two families battle with the disease over the course of a year.