The ambassador to Mexico requests that the Overland Stage company provide transportation to a Mexican diplomat on a mission of vital importance to both the United States and Mexico. The diplomat, the beautiful niece of Emperor Maxmillian, seeks American assistance combating revolutionaries seeking to overthrow the French-supported regime. The revolutionaries plan to kidnap the princess before she can enter United States territory and appeal to Flip for help.
| Name | Type | Role | |
|---|---|---|---|
| N.B. Stone Jr. | Writer | ||
| Ruben Moreno | Guest Star | ||
| John van Dreelen | Guest Star | ||
| Dehl Berti | Guest Star | ||
| Barbara Lord | Guest Star | ||
| Mike Mazurki | Guest Star | ||
| Rodolfo Hoyos Jr. | Guest Star | ||
| Robert Loggia | Guest Star | ||
| Ron Hayes | Guest Star | ||
| Lalo Rios | Guest Star | ||
| BarBara Luna | Guest Star | ||
| Nacho Galindo | Guest Star | ||
| Tay Garnett | Director |