A federal agent goes undercover in order to capture a gang that's been smuggling munitions and horses near the Texas border.
| Actor | Role |
|---|---|
 George O'BrienJim Galloway | Jim Galloway |
 Laraine DayBetty Holden (as Laraine Johnson) | Betty Holden (as Laraine Johnson) |
 Ray WhitleyLuke Jones | Luke Jones |
 John MiljanLouis Rankin | Louis Rankin |
 Rita La RoyRita Browning (as Rita LaRoy) | Rita Browning (as Rita LaRoy) |
 Edgar DearingSmoky Joslin | Smoky Joslin |
 William StellingLeslie Holden | Leslie Holden |
 Edward KeaneColonel Christie | Colonel Christie |
 Ethan LaidlawCurly | Curly |
 Hugh SothernMatt Rathburn | Matt Rathburn |
 Bob BurnsSheriff Clemens (as Bobby Burns) | Sheriff Clemens (as Bobby Burns) |