When a well-known environmental researcher is murdered in the Amazon jungle, an arrogant photojournalist joins forces with a beautiful young activist to find out who is responsible. Along they way, they fall in love as they discover the men responsible for the killing would be more than willing to murder again if it will keep them quiet.
Fiero is hired to assassinate the newly-elected civilian president of San Pedro. His employers are a group of generals, threatened by the liberal sympathies of the new president-elect. The generals, having killed Fiero's father years ago, trick Fiero into thinking he is working for the leftist People's Party. Meanwhile, a CIA agent is sent stop to the assassination. It's a race against time as the agent must stop the HOUR OF THE ASSASSIN.