The Meteorite Men head south to Geoff's home state of Arizona and dig into the legend of the mysterious Tucson Ring — a giant iron meteorite found in the 1800s. Local lore insists that the Ring was only one of many meteorites hidden in the remote and dangerous Santa Rita Mountains. After encounters with scorpions, unexploded ammunition and blistering heat, the guys visit Dr. Laurence Garvie at the Center For Meteorite Studies at ASU to try and solve the enduring mystery.