Halfway through a transcontinental auto race, Dutton Hardmere discovers foul play.
| Actor | Role |
|---|---|
 Buck JonesJack Darwin | Jack Darwin |
 Laura AnsonNadine | Nadine |
| FFred EricDutton Hardmere | Dutton Hardmere |
 Jacqueline GadsdenLorraine Hardmere | Lorraine Hardmere |
 Peggy ShawMarie Hardmere | Marie Hardmere |
 Earl MetcalfeRufus Tyler | Rufus Tyler |
 Claude PaytonMasters | Masters |
| HHarry TracyDancing Joe | Dancing Joe |