Frustrated with the direction of the church, Cardinal Bergoglio requests permission to retire in 2012 from Pope Benedict. Instead, facing scandal and self-doubt, the introspective Pope Benedict summons his harshest critic and future successor to Rome to reveal a secret that would shake the foundations of the Catholic Church. Behind Vatican walls, a struggle commences between both tradition and progress, guilt and forgiveness, as these two very different men confront their pasts in order to find common ground and forge a future for a billion followers around the world.