Immokalee's residents are mostly male - they come mainly from Mexico, Guatemala and Haiti hoping to make enough to send money back to the families they have left behind. Most dream of returning home soon.

Thousands arrive each season - many illegally, with no knowledge of English or their rights. They are, say campaigners, vulnerable to unscrupulous contractors who treat them like slaves. In recent years, a number of cases of involuntary servitude have been prosecuted successfully in Florida.