Doug Patteson

London, England, 2008. Some of the most distinguished experts on the work of Italian artist Leonardo da Vinci (1452-1519) gather at the National Gallery to examine a painting known as Salvator Mundi; an event that turns out to be the first act of one of the most fascinating stories in the history of art.

Assassinations, even of the most treacherous dictator, can shake a nation's confidence, launch wars, or end them. Now, we go behind closed doors to meet the rebels, counter-revolutionaries, and intelligence operatives tasked with these takedowns.

They passed intelligence, intercepted communications, stole blueprints and mapped targets. But ultimately they drove the deep-seated paranoia and distrust that would forever change the course of history.

Assassinations, even of the most treacherous dictator, can shake a nation's confidence, launch wars, or end them. Now, we go behind closed doors to meet the rebels, counter-revolutionaries, and intelligence operatives tasked with these takedowns.

They passed intelligence, intercepted communications, stole blueprints and mapped targets. But ultimately they drove the deep-seated paranoia and distrust that would forever change the course of history.