While Lucrezia is head of the Vatican, Rodrigo Borgia continued his retreat. He tries to erase his feelings of love for Julia and her desire for her own daughter, now married to Alfonso di Calabria. But even away from all temptations, he struggles to get there. For his part, his daughter, a young woman who became regent seat with wisdom and moderation, qualities that are lacking in Cesare. The latter, still at war in Romagna, hopes to achieve with a little luck to defeat Catarina and all the enemies of the Borgia family ...