While visiting the Shoshone-Bannock Tribes, Grandpa Nat leaves behind a microphone that he needs to do an interview for his documentary. Using lessons from the Indian Relay Race - and a maze of lava tubes - can Molly and Stormee get Grandpa his mic? / After hearing the Shoshone-Bannock story about Doe'gwo'ah, the Big Snake responsible for creating the Craters of the Moon lava fields, Molly and her new friend Stormee encounter a real rattlesnake when retrieving Grandpa Nat's wayward drone!