A dramatised account of the rise of the powerful Medici banking family in Renaissance Florence, following Cosimo de' Medici as he manoeuvres through a treacherous world of political intrigue, rival factions, and conspiracy. The series depicts how the family's vast wealth and cunning ambition enabled them to dominate the city and shape the course of European history. Personal loyalties and betrayals intertwine with broader struggles for power, as those closest to Cosimo prove both his greatest assets and his greatest vulnerabilities.