The story assumes that a candidate from the pro-war faction wins the presidential election, leading to an agitated situation in the Taiwan Strait unlike anything seen before. An unexpected incident occurs when a Yun-8 reconnaissance aircraft crosses the South China Sea and crashes into the Pacific Ocean off the east coast of Taiwan. Under the pretext of search and rescue, the Chinese side mobilized many naval and air forces. On the Zero Day of the PLA’s central landing, as unrest within Taiwan escalates, the situation enters its final countdown.

While sailing lawfully up the Yangste river in 1949, the British warship Amethyst found its return to the open sea blocked by Communist Chinese shore batteries that unexpectedly opened fire. In charge, Lieutenant Commander Kerans was not however prepared for his crew and his ship to remain as a hostage for the Chinese to use as an international pawn.