Detroit 48202: Conversations Along a Postal Route is a feature documentary that examines the rise, demise, and contested resurgence of Detroit through the lens of African-American mail carrier, Wendell Watkins, and the residents he has faithfully served for thirty years. Detroit 48202: Conversations Along a Postal Route is a feature documentary that examines the rise, demise, and contested resurgence of Detroit through the lens of African-American mail carrier, Wendell Watkins, and the residents he has faithfully served for thirty years.