Richard Dawkins spends this first half of his two-part inquiry building the case that religious faith itself, not just its extremists, does more harm than good. He travels to Lourdes to watch pilgrims seeking cures at the grotto, then to Colorado Springs for a heated exchange with megachurch pastor Ted Haggard, who preaches to thousands at New Life Church before that interview became infamous for other reasons. In Jerusalem, Dawkins walks the Old City's contested holy sites with religious leaders from different faiths, pressing each on how certainty about one's own god coexists with tolerance for another's. He argues that teaching children to accept unproven claims on faith trains them to accept any claim on faith, and that this habit of mind, not any single scripture, is the root problem. The film gives its subjects room to answer him directly rather than editing them into strawmen, even as Dawkins keeps steering every conversation back to the same question: what evidence would change your mind?