Jimmy Wakely wishes to sell to the government a group of wild mustangs which he has captured and trained for rancher Matt Blake. The competition is Flora Carter, the owner of a near-by ranch. The army colonel in charge decides to buy the winning horses of a cross-country race. Flora has her henchmen, led by Sam Phelps resort to foul means in order to try to win the race.
| Actor | Role |
|---|---|
 Jimmy WakelyJimmy Wakely | Jimmy Wakely |
 Lee 'Lasses' White'Lasses' White | 'Lasses' White |
 Jean CarlinMary Ann Blake | Mary Ann Blake |
| JJack BaxleySheriff Ed Rawlins | Sheriff Ed Rawlins |
| WWesley TuttleWesley Tuttle | Wesley Tuttle |
 Iris LancasterFlora Carter | Flora Carter |
 Zon MurraySam Phelps | Sam Phelps |
 Budd BusterRancher Matt Blake | Rancher Matt Blake |
| BBob DuncanBill Danvers | Bill Danvers |
 Buster SlavenReginal G. Snood | Reginal G. Snood |
| JJonathan BlackColonel Stockton | Colonel Stockton |
| JJasper PalmerStorekeeper | Storekeeper |
| BBilly DixHenchman Billy | Henchman Billy |