At the site of one of the most important mining discoveries in the United States, Dave must untangle the mystery an old dredge and discover if enough gold exists to fund a new generation of miners.

In 1862 a huge gold deposit was discovered in Grasshopper Creek, transforming the tiny Montana town into a thriving settlement. According to the locals, the old-timers missed a spot. Can Dave extract the last bit of gold from this legendary location?