Mundrabilla, Australia

Steve and Geoff head "Downunder" on the most ambitious expedition of their careers. On the far side of the world, they cross the Nullarbor Plain—one of the most desolate locations on Earth—and reach the remote Mundrabilla strewnfield. The guys team up with Australian meteorite specialist Dr. Andy Tomkins and discover that their campsite is right in the middle of the fall zone. With limited time and an enormous area to cover, the guys use every trick they know to find examples of the strange and beautiful Mundrabilla iron.