Leonardo's quest for the Book of Leaves continues, and his failing war designs for the Medicis cause a rift between them. A papal spy, Riario, is defeated by Leonardo and returns to Rome.

Season Summary: During the Renaissance in Italy, Leonardo da Vinci, an unconventional genius, gets implicated in the political machinations of the Pazzi and Medici families, as he gets linked to a Mithraic cult.

First episode date: April 12, 2013
Final episode date: December 26, 2015
Composer: Bear McCreary
Created by: David S. Goyer
Genre: Historical fantasy; Drama; Adventure
Network: Starz (United States); Fox (United Kingdom)