The Daytripper (2009) : 5x9

Chet heads to Mason: the “Gem of the Hill Country.” As the only place in Texas to find topaz, the state gem, Chet learns about it from some local experts, sees the largest topaz in North America, and then goes hunting for his own treasure. He explores the interesting history of town, including the namesake Fort Mason, the HooDoo Wars and more.