Watch Tarzan for Free: How to Stream the Movie Online at 123Movies. . One of the most classic and revered stories of all time, Edgar Rice Burroughs' Tarzan returns to the big screen for a new generation. Tarzan and Jane face a mercenary army dispatched by the evil CEO of Greystoke Energies, a man who took over the company from Tarzan's parents, after they died in a plane crash in the African jungle.