In late 1944, the American Flying Fortress, “Dangerous Dolly”, plunges into an electrical storm to escape destruction by a Nazi jet fighter. Captain Jack Ronan and her aircrew emerge over wartime England in the year 1915. There, they make a forced landing on the estate of an outcast politician named Winston Churchill. Desperate to restore his political career, the erstwhile First Lord of the Admiralty launches Dolly on a one-plane air war against Kaiser Wilhelm. Neither the American aircrew nor the British government know that Churchill is playing a deeper and more dangerous game than he admits.

Churchill and the Americans are unaware of an adversary that could easily destroy Dolly—the jet that pursued her was also drawn into the space-time rift. Ambitious Luftwaffe pilot Fritz Wernher wants to become Imperial Germany’s greatest ace, but instead, is ordered to assist designer Anton Fokker to reverse-engineer the jet. If Fokker succeeds, with overwhelming aerial supremacy, the Central Powers will win the war.

After the American bomber attacks his war industry and humiliates his fleet, the irate Kaiser orders Wernher to destroy the elusive nemesis. When Churchill attacks the infamous Paris Gun, Wernher’s hunt climaxes in a savage air battle. The outcome will change the future of a continent and history as we know it.