Original score from Carlo Siliotto. Nine-year-old Carlos aka Carlitos is one of the countless children left behind by parents who come to the U.S. seeking a way to provide for their families. When the death of his grandmother leaves young Carlitos alone, he takes his fate into his own hands and heads north across the border to find his mother. As he journeys from his rural Mexican village to the L.A. barrio, Carlitos faces seemingly insurmountable obstacles with a steely determination and unfettered optimism that earn him the grudging respect and affection of a reluctant protector, a middle-aged migrant worker named Enrique. Unaware his mother is only hours away from returning to Mexico to be with her son, Carlitos and Enrique desperately comb the vast unfamiliar city for a place he has seen only in his imagination.