Overview: Leonardo and his allies are forced to retreat when the Ottoman Empire storms the city of Otranto.
Overview: Leo devises an escape from Otranto but may not be able to save those closest to him.
Overview: Leonardo investigates a horrific murder that may result in the Labyrinth being exposed.
Overview: Carlo's attempt to program Leonardo into becoming "one" with the Labyrinth leads him to slip into an alternate reality that could prove life-threatening.
Overview: A paranoid Leonardo becomes shut off from his friends, while an endangered Lucrezia searches for a way to make amends for past sins.
Overview: The Monster of Italy is captured but not all is safe as danger still lurks and poses a threat to the upcoming Crusade Festival.
Overview: A former nemesis returns to Florence and stands in opposition to Crusade efforts. Vanessa and Nico ponder their futures; Leo attempts to decipher the Turkish armor.
Overview: Nico and Zoroastre turn to an old enemy to gain support for the Crusade. Leo is ambushed by the Labyrinth.
Overview: Leo and Sophia struggle to control the mysterious device they've built. Back in Florence, Riario awaits judgment while Lorenzo and Vanessa take their partnership to the next level.
Overview: Leo must put his faith in his friends and in himself to have a chance to defeat the Turks.