Relentless gang violence, poverty and dreams to reunite with their families drive thousands of young people from Central America up to the US every year. Meet 17-year-old Elisabeth who tried to flee El Salvador after threats of kidnapping, and Bryan who joined the gang MS 13 as a way to defend himself. The journey to the US is long and dangerous. Few make it all the way. For Luis from Guatemala, the ride on the train La Bestia through Mexico became a nightmare that changed his life forever.