An escaped convict gets a hold of some radioactive material after his escape. Authorities desperately try to find the man that unknowingly is threating the lives of everyone in the city.

The Spanish explorer Pizarro captures the Inca god-chief Atahualpa and promises to free him upon the delivery of a hoard of gold. But Pizarro finds himself torn between his desire for conquest and his sense of honor after friendship and respect develops between captive and captor.