[1][2][3] The novels deal with the radical alteration of the history of World War II and the socio-historical changes that result when a technologically advanced naval task force from the year 2021 is accidentally transported back through time to 1942.
In 2021, a radical Islamic terrorist movement has declared a global jihad against the Western world and established a Caliphate in Indonesia, initiating a wholesale slaughter of Chinese nationals there.
Matters are further complicated by the fact that the chaotic nature of the Nagoya's "time bubble" has transported some 2021 ships to locations far from the main group, and these vessels variously fall into the hands of the Japanese, the Germans and the Soviets.
Another vessel is captured by the Germans and as they learn more about the future outcome of the war they halt and abandon their ill-fated invasion of Russia and prepare for an all-out assault on the United Kingdom.
The Soviet Union uses the treaty with Germany to assemble a powerful and massive military and launch a large scale invasion into Asia and Eastern Europe, conquering a vast amount of territory.