The story of the Cuban Missile Crisis in 1962—the nuclear standoff with the USSR sparked by the discovery by the Americans of missile bases established on the Soviet-allied island of Cuba.

In 1993, the Search for Extra Terrestrial Intelligence Project receives a transmission detailing an alien DNA structure, along with instructions on how to splice it with human DNA. The result is Sil, a sensual but deadly creature who can change from a beautiful woman to an armour-plated killing machine in the blink of an eye.