British soldier, American mercenary and native Indian travel in south America

When a Spanish Jesuit goes into the South American wilderness to build a mission in the hope of converting the Indians of the region, a slave hunter is converted and joins his mission. When Spain sells the colony to Portugal, they are forced to defend all they have built against the Portuguese aggressors.

Triad boss Lung, who has just escaped being killed in an assassination attempt hires the killers Curtis, James, Mike, Roy and Shin for his protection.