Da Vinci##s Demons Canceled Starz Series Not Returning for Season 4

In the Season 2 finale, Italian cities brace for an Ottoman attack; danger stalks Riario; and Nico holds Vanessa's destiny in his hands.

Back in Florence, Leonardo finds an iron-fisted Duke Federico ruling his subjects; a sinful Riario seeks redemption; and King Ferrante enters negotiations with Lorenzo.

Leonardo and Riario face death, while Zoroaster and Nico plot an escape. Meanwhile, Lorenzo cools his heels waiting for an audience with the King of Naples; and Bayezid comes to Rome on a diplomatic mission.

Leonardo and his allies' quest for the Book of Leaves turns deadly; Carlo comes to Clarice's aid; and in the East, the son of the Sultan is intrigued with Lucrezia.

Leonardo and Riario are challenged upon entering the Vault of Heaven; Lorenzo participates in King Ferrante's bloody games; and Lucrezia encounters the Turk on her way to Constantinople.

Leonardo, Riario and Nico are reunited in the New World; Lorenzo is helped by an old flame in his attempt to save Florence; and Clarice's hold on the Medici bank is threatened.

Leonardo attempts to navigate the Atlantic without maps; Lucrezia is snuck into the Vatican for a vital meeting; and Lorenzo is recognized on his way to Naples.

Leonardo's quest for the Book of Leaves continues; Pope Sixtus deals aggressively with Florence, leaving Lorenzo to make sacrifices; and Lucrezia undertakes an alliance-forming mission to Rome.

Leonardo uses his wiles to restore order to Florence, while Pope Sixtus recruits powerful allies and Nico tries not to succumb to Riario's temptations.

In the Season 2 premiere, the Pazzis strike, leaving the fate of Florence in Leonardo's hands, while Riario forges on in his quest to attain the Book of Leaves.

In the series 1 finale, the Pazzis set in motion a plan to murder Lorenzo and Giuliano on Easter Sunday, while the Turk tells Leonardo the location of the Book of Leaves. Later, Lucrezia serves up a startling revelation as Leonardo steps in to save the Medicis.

Leonardo constructs a suit for underwater transportation and takes to the sewers to enter the Vatican, where he meets the pope and a mysterious prisoner. Meanwhile, Giuliano reveals the identity of spy in Rome.

The Turk's clue about the Book of Leaves leads Leonardo to Wallachia and an encounter with Vlad Dracula, while Lorenzo and Piero have a meeting with the Duke of Urbino. Later, the spy search intensifies.

Lorenzo demands that Leonardo's estranged father defend his son in court. Later, Leonardo surprises a corrupt judge during a performance for visiting royals, and is surprised himself when the Turk makes an appearance at the workshop.

Bechhi is accused of spying for Rome and arrested; Leonardo unveils his latest weapon when the armies of Rome and Florence square off. Later, at a party in his honor, Leonardo is arrested and charged with sodomy.

Riario engages the Pope and a mysterious prisoner in a discussion concerning the count's defeat, while Leonardo searches for a rational explanation when an outbreak of demonic possession occurs at a convent, and the blame is placed on the Medicis.

Leonardo's quest for the Book of Leaves continues; the pope's nephew meets a spy upon his arrival; and Leonardo's war designs do not measure up for the Medicis, causing a rift between the inventor and the rulers.

A chronicle of the life of Leonardo da Vinci begins with the Italian artist-inventor in his mid-20s, when he is commissioned by the Medicis to create an Easter spectacle in Florence. Later, he's hired to build war machines, and meets a mysterious Turk.