In the early 20th century, as Europe moves closer to war, Duke Orlando Oxford, a nobleman sworn to pacifism following personal tragedy, uncovers a conspiracy to incite global conflict by a nefarious group known as "The Flock." The shadowy organization, led by a mastermind only known as "The Shepherd," aims to pit the world's major powers against each other to profit from the ensuing chaos. Orlando, recognizing the imminent danger, decides to thwart their plans. Aided by his loyal servants, Shola and Polly, Orlando begins to collect intelligence, leveraging his aristocratic connections and combat skills for a purpose he once forswore.

Navigating a series of perilous missions across the world's political hotspots, Orlando and his team encounter a variety of historical figures, from Russian mystic Rasputin to British military icons. Through these interactions, they unravel the intricate web woven by The Flock. At the same time, Orlando mentors his son Conrad, a bright and eager recruit who desperately wants to serve his country in the military. Despite the Duke's objections, given his protective and pacifistic inclinations, Conrad's determination to fight against tyranny and injustice pulls him into the dangerous world of espionage and warfare that his father is trying to prevent. As tensions mount and war looms, the duke's efforts to preserve peace become ever more entangled with the need to protect those he loves from the escalating global threat.