An ageing motocross champ agrees to help design and endorse a new motorcycle.
| Actor | Role |
|---|---|
 Marjoe GortnerDigger | Digger |
 Michael ParksJ.W. Wyatt | J.W. Wyatt |
 Susan HowardChris Gentry | Chris Gentry |
 Alex CordPackard Gentry | Packard Gentry |
 Charlotte RaeMrs. Holt | Mrs. Holt |
 Bill VintJerry Fleming | Jerry Fleming |
 Barry LivingstonWillie Holt | Willie Holt |