About 14 million children are enslaved today worldwide - more than at any time in history. Now, in a remarkable journey across five continents, six children tell their stories. Children are bought and sold like bags of sugar. They break stones in quarries, clean and cook for their owners, work the plantations and service Western sex tourists. They are beaten, abused, denied any contact with their family and often worked to death. Many of their captors do not see the practice as wrong.