The powerful Medicis commission rising artisan Leonardo da Vinci to create an Easter spectacle in Florence; Leonardo takes on another assignment to engineer war machines; the arrival of a mysterious Turk intrigues Leonardo.
Leonardo continues his quest for the Book of Leaves; the pope's nephew arrives; the failure of Leonardo's war designs causes a rift with the Medicis; the pope learns of Leonardo's talents.
Riario discusses his defeat with the pope and a mysterious prisoner; Leonardo searches for an explanation when the Medicis are blamed for an outbreak of demonic possession at a convent.
Bechhi is accused of spying for Rome; Leonardo reveals his latest weapon as the armies of Rome and Florence face off.
Lorenzo orders Piero da Vinci to defend his estranged son in court; Leonardo surprises the corrupt judge during a performance for visiting royalty; the Turk visits Leonardo at his workshop.
The Turk's clue regarding the Book of Leaves leads Leonardo to Wallachia, where he meets Vlad Dracula; Lorenzo and Piero encounter the Duke of Urbino; the hunt for the true spy continues.
Tom Riley
Leonardo da Vinci
Laura Haddock
Lucrezia Donati
Elliot Cowan
Lorenzo Medici
Lara Pulver
Clarice Orsini
Blake Ritson
Count Girolamo Riario