Brothers Josh and Jesse Feldman head into the rugged desert of southeast Arizona to track the history of a legendary Apache chief said to have buried two strongboxes of gold somewhere in the region's imposing mountains.

Josh and Jesse pursue bandit brothers John and Charles Ruggles, who robbed a stagecoach in 1892 and left an unusual treasure hidden in the wilderness outside Redding, California.

Josh and Jesse trek across California and Nevada as they chase the trail of Milton Sharp, a prolific stagecoach robber from 1880 whose missing loot has never been recovered.

Josh and Jesse combine Arizona history and their family legacy of treasure hunting to unravel the mystery of the Lost Adams Diggings, one of the most famous lost mines in the Southwest.