Maya is an illegal alien who has crossed the U.S. border from Mexico to search for her sister Rosa, and to begin a new life. After being reunited, Rosa gets Maya a job with a janitorial service in a large office building. While working, Maya happens upon Sam Shapiro, a muckraking lawyer and union agitator whom the service-workers' union has assigned to bring its "justice for janitors" campaign to the building. Appalled at the work conditions and unfair...