In 1908 London, a women's rights campaigner discovers the Assassination Bureau Limited, an organization that kills for justice. When its motives are called into question, she commissions the assassination of its chairman. Knowing that his colleagues have recently become more motivated by greed than morality, he turns the situation into a challenge for his board members: kill him or be killed.

During the second world war, two British officers, Brand and Leith, who have never seen combat, are assigned a vital mission. Their relationship and the operation are complicated by the arrival of Brand's wife, who had a tryst with Leith years earlier.

International spies Napoleon Solo and Illya Kuryakin travel around the globe in an effort to track down a secret formula that was divided into four parts and left by a dying scientist with his four of five daughters, all of whom live in different countries. His widow, Amanda, is murdered at the beginning by the counter-spies of the organization THRUSH. Evil THRUSH agent Randolph also wants the formula, and is aided by his karate-chopping henchmen.

A secret agent is sent to the Middle East to destroy a gang of assassins.

The crew of the American destroyer escort, the USS Haynes, detects a German U-Boat—resulting in a prolonged, deadly battle of wits.

In 1940, the Royal Air Force fights a desperate battle against the might of the Luftwaffe for control of the skies over Britain, thus preventing an attempted Nazi invasion.