When a builder receives a contract for the construction of a large dam, his business rival sets out to blacken his good name by substituting inferior cement while the dam is being built. Bob Downes, a bright young man who hates his soft job, learns of the plot to ruin the dam and lends his considerable energy to defeating the conspirators.
| Actor | Role |
|---|---|
 Reed HowesBob Downs | Bob Downs |
 Bruce GordonHarold Simpson | Harold Simpson |
 Dorothy DwanJanet Jordan | Janet Jordan |
 Billy FraneyNot listed | Not listed |
| DDavid KirbyNot listed | Not listed |
 Richard TraversNot listed | Not listed |
| JJohn SinclairNot listed | Not listed |