Veteran postman Bob Morley and his son Johnnie are honored for their service to the U. S. Mail Service. When Johnnie takes a position on the Enterprise, he is falsely convicted of theft and murder when the cargo is stolen and the ship's officer is shot.
| Actor | Role |
|---|---|
 Ralph LewisBob Morley | Bob Morley |
 Johnnie WalkerJohnnie | Johnnie |
 Martha SleeperBetty | Betty |
 Virginia True BoardmanMrs. Morley | Mrs. Morley |
| DDavid KirbyJack Morgan | Jack Morgan |
 Josephine AdairVirginia | Virginia |
| TTaylor GravesHarry | Harry |
 Hardee KirklandCaptain Franz | Captain Franz |
 Richard MorrisAdmiral Fleming | Admiral Fleming |
 Rosemary CooperMrs. Thompson | Mrs. Thompson |
 Wilbur HigbyGovernor Bryson | Governor Bryson |
 Herschel MayallStephen J. Nelson | Stephen J. Nelson |