Every morning - before 0500 - buses leave Immokalee's main square to take Guadalupe and the other pickers to the tomato fields and citrus groves owned by large agricultural corporations.

More than 12-hours later, after a day of working under Florida's relentless sun, the same buses will take the pickers, exhausted and reeking of pesticide, back to the town square.

"I was dying to come back," Guadalupe says. "You see the hours go by but there are still so many hours of work ahead."