A Cambodian woman waits with other undocumented migrants while a local boat pilot determines if rough river water is safe enough to cross. She and the others are on their way to Kao Wong, an unofficial border crossing watched by Cambodian military police who are largely ex-Khmer Rouge soldiers and Thai army. With land mines planted nearly everywhere, it takes a guide with minefield knowledge and relationships with the border patrol to get migrants into Thailand where they look for jobs. This leaves the migrants vulnerable to some of the well-documented cases of labor and sex abuse at the hands of human traffickers working with some guides.