In 1902, nearing the end of the
Second Boer War,
British aristocrat Orlando, Duke of Oxford, his wife Emily, and their young son Conrad visit a
British concentration camp in
South Africa while working for the
British Red Cross. A sniper attack on the camp mortally wounds Emily; before dying, she makes Orlando promise never to let their son see war again. Twelve years later, Orlando has formed a private spy network with his servants, butler Shola and maid Polly Wilkins, employed by the world's most powerful dignitaries. Conrad is eager to fight, but Orlando forbids him to join the
British Army and persuades
Secretary of State for War Lord Kitchener not to let him do so. At Kitchener's request, Conrad and Orlando ride with Orlando's friends,
Archduke Franz Ferdinand of Austria, and his wife
Sophie, Duchess of Hohenberg, through
Sarajevo. Conrad saves the Archduke from a bomb thrown by
Gavrilo Princip, a
Bosnian Serb intent on sparking a war. Princip later reencounters the Archduke's entourage by chance and
fatally shoots him and his wife, starting
World War I. Orlando learns that the assassination was orchestrated by "The Flock": a group plotting to pit the
German,
Russian, and British empires against each other, led by the mysterious "Shepherd", whose ultimate goal is
Scottish independence; his operatives include Russian mystic
Grigori Rasputin, trusted adviser to
Tsar Nicholas of Russia. Rasputin poisons Nicholas's young son
Alexei, only to cure him after Nicholas promises to pull out of the war. Conrad is notified of Rasputin's manipulation by his cousin, Prince
Felix Yusupov. Knowing the
Western Front will be left vulnerable if Russia exits the war, Conrad delivers this information to Kitchener and his
aide-de-camp Major Max Morton, who sets sail for Russia. Their ship, , is torpedoed by a submarine and sunk. Word of Kitchener's death reaches Orlando, spurring him to travel to Russia with Shola, Polly, and Conrad to kill Rasputin. After a gruelling fight, the four kill Rasputin at a Christmas party hosted by Prince Felix. To keep the
United States from entering the war,
Erik Jan Hanussen, an adviser to
Kaiser Wilhelm II, sends the
Zimmermann Telegram, encouraging
Mexico to invade the United States. Although British Intelligence intercepts the message, Polly deciphers it, but American President
Woodrow Wilson refuses to join the war, citing a lack of concrete proof. The Shepherd recruits
Vladimir Lenin to
overthrow the Tsar and remove Russia from the war, sending an assassin to
execute the Romanov family. Conrad is commissioned into the
Grenadier Guards against his father's wishes.
King George V arranges to have him assigned to
London. Determined to fight in the war, Conrad swaps places with Scottish soldier Archie Reid, giving him the nickname "Lancelot" to send his father a message. Disguised as Archie, a member of the
Black Watch, Conrad volunteers for a mission into
no man's land to retrieve information from a wounded British agent. Upon his return, a fellow soldier who knows Archie accuses him of being a German spy and shoots him dead, devastating Orlando. The information he recovered verifies the authenticity of the Zimmermann Telegram. After Wilson again refuses to enter the war despite Conrad's proof, Orlando learns that the President is being blackmailed with footage of being seduced by Shepherd's agent,
Mata Hari, and resolves to recover the negatives. Upon defeating Mata Hari at the American embassy, Orlando identifies her
cashmere scarf and locates its origin. Orlando parachutes onto the mountaintop sanctuary of the Shepherd, who is revealed to be Morton. Morton had arranged Kitchener's assassination and faked his own death. Orlando fights and kills him with Shola's help. Polly recovers the film, which is delivered to Wilson. He then burns it and brings the United States into the war. Following the war, Orlando purchases the
Kingsman Tailor Shop as a front for his organization. Orlando, Shola, Polly, King George V, Archie, and the
US Ambassador to the UK form the original Kingsmen, each being assigned a codename from the
King Arthur legend to honour Conrad. In a
mid-credit scene, Hanussen, having assumed command of Shepherd's organization, introduces Lenin to the Romanovs' assassin,
Adolf Hitler. ==Cast==