Opioids are devastating Cherokee families. The tribe has a $100 million plan to heal

Mazzy, age 9, and Ransom, age 6, were adopted by Gary and Cassie Walker after their biological parents got caught up in the opioid epidemic. The Walkers have adopted or fostered nine Cherokee kids during the drug crisis. (Brian Mann/NPR)

Late one afternoon, Mazzy Walker gives a tour of her family's farm near Tahlequah, Okla., capital of the Cherokee Nation.

"Cows are walking, turkeys, a dog," she said, giggling at her role as tour-guide. "I don't know what!"