The plight of America's underpaid, overworked laborers is a recurring theme on Undercover Boss, but Sunday's episode of the popular CBS (CBS) show will take the issue to a whole new level. Shadowing Chiquita Brand International's (CQB) CEO Fernando Aguirre, the popular program will give viewers -- and Aguirre -- a ground-level look at the lives of some of the country's undocumented Mexican agricultural workers.