In this profound documentary series, legendary filmmaker Martin Scorsese turns his cinematic eye from the sinners to the saved, exploring the tumultuous lives and enduring legacies of history's most revered holy figures. Each episode delves into the complex humanity behind the halo, examining the spiritual crises, profound sacrifices, and often controversial paths that led these individuals to sainthood. From mystics and martyrs to reformers and outcasts, the series presents them not as distant icons, but as flesh-and-blood people grappling with divine callings in a fractured world. With Scorsese's signature narrative depth and a rich, atmospheric tone that blends historical drama with theological inquiry, the series challenges viewers to reconsider the very nature of faith, power, and redemption. Across two compelling seasons, it paints a visceral and unexpectedly human portrait of devotion, asking what it truly costs to become a symbol of eternal light.