David Webb, portrayed by Robert Powell, transitions from his role as a safari tour guide to overseeing security on the opulent train, Pride of Africa. He soon realizes that the affluent travelers aboard can pose threats akin to the wild creatures he’s familiar with. As the train journeys through the verdant landscape, Webb finds himself entangled in a perilous kidnapping scheme, a fiery romantic dispute, and a potential homicide in this 1930s-set mystery crafted for television.