Border Wars - Season 1 - Eps 4: The Front Lines
Officer Hector Navarro stops a silver pickup truck at the Nogales port of entry. The driver is acting suspiciously and traveling alone, which is a red flag. A police canine is called in to sniff for narcotics, and a cleverly hidden trove of heroin is uncovered - breaking an all-time record for drug busts at this port of entry.
About Border Wars

Title: Border Wars
First Air Date: 2010-01-10
Last Air Date: 2015-04-15
Status: Canceled
Rating: 7.5/10 (from 2 votes)
Language: EN
Seasons: 6
Total Episodes: 61
Network: National Geographic
Genres: Documentary, Crime, Reality
Production Companies: Unknown
Synopsis
Border Wars is an American documentary television series on the National Geographic Channel. The program follows agents of the U.S. Border Patrol, U.S. Customs and Border Protection, Immigration and Customs Enforcement, and other divisions of the Department of Homeland Security as they investigate and apprehend illegal aliens, drug smugglers, and other criminals violating immigration to the United States and customs laws. The series also follows Air Interdiction Agents, and Marine Interdiction Agents who patrol along the U.S.-Mexico border, as well as southern Florida and Puerto Rico.