A corrupt group of American expatriates uses a Mexican border town to smuggle gold from Mexico to the US and then to Asia, hiding it in crates of Aztec artifacts. US Customs agent Mark Reed is sent to Mexico to investigate and infiltrate the ring, posing as a diamond peddler and using an alias.

Federal Agent at Large
A covert US Customs agent is dispatched to Mexico to infiltrate and dismantle a notorious crime organization's lucrative gold trafficking operation.