What other dangers do Enrique and migrants confront daily? How do they struggle to survive?

Enrique and the others make the trip with little or no money. They are taken advantage of, hunted by police, and attacked by robbers. Emigrants ride on the top of speeding trains with no protection from and elements. It is physically unsafe, but determination causes these kids to keep going, regardless of the fact they are often caught and deported (usually more than once).