Cocaine Wars (1985)

Miami DEA agent Cliff Adams is in South America working undercover for Gonzalo Reyes, the biggest cocaine exporter in South America. Cliff's fiancée, Janet Meade, is a reporter doing a story about Reyes. Reyes orders Cliff to kill Marcelo Villalba, who is running for his countries position as president, but Cliff can't bring himself to do it, because his assignment from the DEA is to work against Reyes.