When a man Bat staked to search for the Lost Dutchman's Mine disappears, Bat buys a map from a too agreeable bartender and sets off in pursuit. Bat soon learns that his friend is but one of many miners who have recently vanished.
It is 1884 and Bat arrives in Tucson, Arizona Territory. Bat had staked his friend Steve Fansler who had come there to search for the Lost Dutchman's Mine in the Superstition Mountains north of Tucson. Bat stops at a local bar where Fansler said he bought a map to the mine. As Bat procures another map from the bartender, his conversation is overheard by another patron Allesandro Vallin who is looking for a similar friend. The two take the trail shown on the map until it ends where a dog forces them to take the left trail and leads them to a home owned by a Mr. Smith. He provides the pair with lodgings, baths, and food but they discover Kana, Mr. Smith's aide, has taken their weapons and money. At dinner they meet Angelita who Mr. Smith introduces as his daughter. During dinner they hear a man's screams. Mr. Smith takes them captive saying they will learn the truth the next morning. After sneaking out they learn Angelita is also a prisoner and Mr. Smith has a silver mine with slave ... Written by