台海戰爭一觸即發，透過不同面向，勾串起在戰爭威脅下，關於人性操控、政治爾虞我詐的故事。

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.