Border Wars - Season 3 (2011)

Officers must patrol obscure spots along the U.S.-Mexico border to prevent smuggling.

Officers at a port of entry stop an unlikely but increasingly common drug smuggler - an elderly woman.

Border Wars journeys across the U.S./Mexico border for a unique view into one of the world's most dangerous cities -Ciudad Juarez.

Along the southern Arizona border, agents travel into the heart of cartel territory persuade illegal migrants from crossing.

Border Patrol agents fight a constant battle to prevent the drug wars in Ciudad Juarez from spilling into neighboring El Paso, Texas--one of the safest cities in America.

Agents and officers work around the clock to secure the border between El Paso, Texas, and Ciudad Juarez, Mexico.

CBP Agents face the difficult challenge of defending a border drawn by the narrow, meandering course of the Rio Grande River.

At the southernmost tip of Texas is the Rio Grande Valley - a vast and sparsely populated region. As Mexican drug cartels expand their reach north of the border, the US Department of Homeland Security must rely on every available resource to find and apprehend smugglers and illegal immigrants.

In this episode of Border Wars, we travel to the Rio Grande Valley in the southernmost tip of Texas. Along a sixty-mile stretch from McAllen to Brownsville, drug smugglers and illegal immigrants risk their lives to cross the floodwaters of the Rio Grande and make illegal entry to the United States.

The Rio Grande Valley is a main battlefront in the war against illegal trafficking.