A wealthy gold mine owner is brutally murdered by a rival, who seeks to claim the mine for themselves. The mine's friend, Hoppy, takes over the operation and discovers that the rival's men are secretly working the mine at night. Hoppy captures one of the rival's men, but is later captured and left for dead in a burning building.
Bar 20 Justice
Hoppy's investigation into stolen ore leads him on a thrilling chase through the mine's winding tunnels, determined to catch the thieves in the act.