June 1914, London. Richard Hannay, recently returned from Africa, is bored and restless until he meets Scudder, a man who claims to be a British spy. When Scudder is killed in Hannay's flat, Hannay finds himself accused of murder and caught up in a deadly conspiracy which not only threatens his life but the safety of the nation. Spurred on by this bizarre turn of events, Hannay flees London for Scotland hoping to uncover a German espionage ring. As the police and the spies close in on him, he struggles to decode Scudder's secret notebook. Reluctantly he joins forces with a feisty suffragette, Victoria Sinclair. Victoria and Hannay don't hit it off, but they find themselves increasingly reliant on each other as they race to unmask a traitor and save Great Britain from invasion.