The Greatest Good - The Harold Lee Washington Story begins with the life of Harold Washington, a young political mastermind who was inspired by Chicago's founder, Jean Baptiste Du Sable and his father, Roy Washington.

In the mid 1950's, after being deceived by Chicago's Mayor, Richard J. Daley to secure the black vote, Harold Washington seizes the opportunity to launch his own political career aimed at destroying the Chicago political crime syndicate. After working his way up through every level of government, Harold ignites the African American, Mexican American and Native American communities of Chicago to become the city's first Mayor in Chicago's history to challenge and defeat the brutally racist machine. Under his leadership, a powerful and corrupt political machine was brought to its knees.