Blood on the Wall

In Central America, a caravan of migrants seeking a better life heads north to the United States, as narco-traffickers move drugs and money back and forth across the same border. From Academy Award-nominated director Sebastian Junger and Emmy-winning producer Nick Quested, Blood on the Wall explores the depths of corruption plaguing Mexico and Central America and the policies of the past that have made it impossible for everyday people to find justice. (National Geographic)