This large-scale documentary project about the eponymous work of Saint John Climacus—a Christian theologian of the 6th–7th centuries who created a unique guide to combating sins and acquiring virtues—consists of thirty episodes, exactly matching the number of steps on the spiritual ladder that leads a person to Heaven. In each episode, Boris Korchevnikov, Archpriest Igor Fomin, and invited experts turn to the text of «The Ladder» to make it understandable and relatable to modern viewers.