The story centers on , a modern-day commercial Boeing 757 traveling from Washington, D.C., to London. While crossing the Atlantic, the plane encounters a mysterious electromagnetic storm that transports it back to 1940s France during the height of World War II.

: A history professor on board recognizes they are in an alternate history where the Nazis are winning more decisively. Some passengers even suggest using their knowledge to assassinate Hitler or change the course of the war.

: The modern airliner is repeatedly attacked by Luftwaffe fighters, including historical anomalies like the Me 262 jet appearing earlier in the timeline than it did in reality.