One man's fight against a billion-dollar industry of chocolate-giants who ruthlessly exploit illegal child labour in their production. Twenty years ago, the world's biggest cocoa producers signed an agreement to end child slavery. Since then, the appalling abuse has only got worse. US lawyer Terry Collingsworth is working hard to bring the chocolate giants to justice and has dedicated his life to the abolition of slavery and human trafficking, and to fighting the food giants and their army of lawyers.