Cast & Crew
Marshall Strong and John Moore, partners in a western gold mine, both fall in love with schoolteacher Constance Harvey, but she marries Moore, even though she is attracted to the shy Strong, because Moore convinces her that Strong loves someone else. After they strike ore, Moore is killed in a barroom brawl and Strong is accused of murder. He hides out and sends for Constance, but when Lilas Niles, a squatter's daughter who wants Strong's money, deceitfully tells him that Constance is sending the police, Strong leaves, embittered, and marries Lilas. Years later, Strong, now known as Mark Smith, is a wealthy mine owner. Constance lives with her son David who loves Strong's daughter Nancy and works in Strong's mine. After Strong refuses demands for safety precautions, an explosion traps David underground. When Strong discovers that David is Constance's son, he rushes into the burning mine to save him. Strong then promises safer conditions, and David marries Nancy.
Mlle. Marguerite Serruys
Loan Star Dietz
Elizabeth Du Barry Gill
This was the only film produced by the Washington Motion Picture Corp., which was located in Minnehaha Park, Spokane. Some scenes were filmed in the Cascade Mountains in Washington. The film was later known as Undermined. Some reviews call this film Fool's Gold, while others refer to it as Fools' Gold. The company engaged Tyrone Power in May 1918 to star in their film, but troubles prevailed during the shooting and Power was dismissed. On August 27, 1918, after shooting was completed with Mitchell Lewis in the lead role, the company was declared insolvent and a receiver was appointed.