A crime ring is smuggling gold from Mexico across the border in the US. The Customs Service sends an agent to Mexico to try to infiltrate the ring and stop the smuggling.
| Actor | Role |
|---|---|
 Dorothy PatrickSolitare | Solitare |
 Robert RockwellDr. Ross Carrington | Dr. Ross Carrington |
 Kent TaylorMark Reed, aka Nick Ravel | Mark Reed, aka Nick Ravel |
 Estelita RodriguezLopita | Lopita |
 Thurston Hall'Big Bill' Dixon | 'Big Bill' Dixon |
 Frank PugliaAngelo 'Angel' Badillo | Angelo 'Angel' Badillo |
 Roy BarcroftNels Berger | Nels Berger |
 Denver Pyle'Jumpy' Jordan | 'Jumpy' Jordan |
 Jonathan HaleJames Goodwin | James Goodwin |
 Sonia DarrinMildred | Mildred |
 Robert KentHarry Monahan | Harry Monahan |
 Kenneth MacDonaldCaptain | Captain |
| FFrank McFarlandDuke Warren | Duke Warren |
 John McGuireCustoms Officer | Customs Officer |