A traveler without a ticket gets off the train he has stopped, becomes an occasional station master, fraternizes with the inspector who is chasing him, protects the loves of the wife of the real station master who has abandoned his post to make sure of his wife's fidelity, and takes the train back when everything is settled.

Jean Lerat begins his military service at an army camp. Despite his aunt’s attempts to pull a few strings to his advantage, the unfortunate Lerat manages to get on the wrong side of his bullying colonel…