Mark Dowd continues his look at religious fundamentalism, moving from its roots into the shape it takes today across Christianity, Hinduism, Judaism, Islam, and Buddhism. Rather than treating the word as shorthand for terrorism, Dowd argues fundamentalism is a modern development tied to politics and economics rather than a return to any ancient, pure faith. He traces how the same impulse plays out differently depending on context: in poorer countries it can function as a support network for people the state has failed, while in wealthy nations it becomes a rallying point for minorities facing discrimination, and a tool politicians use to frame rivals as enemies of belief. The film keeps circling back to fundamentalism's practical function, what it gives people, rather than treating it as pure ideology. This second installment builds toward the series' central worry, that these dynamics are pushing societies further apart, without offering a tidy resolution.