For close to two decades, thousands of Central American migrants have lost their dreams, limbs and even their lives trying to illegally cross Mexico. Crossing Mexico is the insurmountable challenge that faces all those whose only goal is to reach the United States. The nightmare begins the moment they step onto Mexican soil. Here they must jump on to a cargo train known simply as La Bestia or The Beast , an agonizing journey from which there is no way back, a travesty comparable only to hell itself.  In order to film this documentary the filmmakers rode alongside these Central American migrants for two weeks, braving the journey with those fighting for a better life. La Bestia , a heart breaking film by Pedro Ultreras and Hiram Gonzalez, showcases the determination of the human spirit and the unquenchable thirst for something more.