Investigating whether the mysterious group known as the Illuminati is an actual secret society operating in the shadows or simply the invention of conspiracy theorists. Jamie investigates the Order of the Rosy Cross, who's infamous members included Leonardo Da Vinci, Sir Isaac Newton, and Sir Christopher Wren. The group is rumored to have influenced corridors of power across Europe, including royal families and politicians. Jamie looks at various secret organizations and their incredible histories as well as meeting journalists, authors, and experts who have spent decades trying to shed light on them.

Had the Nazis developed a brand new flying craft at a secret research facility in Northern Germany? Did the Americans and Russians steal that technology after the Second World War? And was it, as many have claimed, a man-made flying saucer?