Border Wars - Season 5 - Eps 8: Animals on the Frontline
For those rare occasions when human skills are insufficient, Customs and Border Protection (CBP) agents and local law enforcement officers turn to their friends in the animal world for some on-the-job help. In Rio Grande City, Archie, a CBP K-9, helps agents track a group of illegal immigrants spotted passing through.
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.