On this episode of Living Downstream, we visit Houston's Greater Fifth Ward, to learn how creosote contamination has degraded the health of people living near a rail yard. We talk with residents, who describe all the cancer cases in the neighborhood and with Dr. Robert Bullard, widely considered the father of environmental justice. Residents have organized to advocate for compensation from the railroad company that owns the yard. What will stay with you is the story of "Mister" — a young neighborhood resident who dreams of becoming a veterinarian. Laura Isensee reports.