On the US–Mexico border, customs agents fight the threat of terrorism while remaining vigilant against illegal immigration and smuggling. Officers stage an undercover sting to infiltrate human smugglers and uncover hidden narcotics inside a car.

Working around the clock at one of the United States’ busiest border crossings, U.S. Customs and Border Protection (CBP) officers and agents are on the frontline in America’s war against narco-trafficking, illegal immigration, and terrorism.