Craig McGill travelled the world to find out who these desperate people are and in Human Traffic he tells their stories. We learn what it is like to risk your savings or your life to move to the West, often to face hostility, debts or deportation. Some even find themselves in economic or sexual slavery. McGill also interviews the law enforcement agencies that police international borders and comes face-to-face with the smugglers who mastermind the unlawful movement of people.