Southerners pass down traditions, stories and -- hopefully -- a better world to their children. The family stories in this episode come from people trying to do just that. Steve Benjamin, the first African American mayor of Columbia, South Carolina, is working for 100 percent clean energy -- and making progress. Tom & Sandra Clark, grandparents from North Carolina, are trying to preserve their home for their grandchildren. And Amy Mercado and Vic Torres, a father-daughter team from Florida, are fighting to be sure America take care of its people.