Jameson's Caleche is a route along the southern coast of North America between Acapulco and New Orleans.
The caleche is operated by married couple Mr. and Mrs. Jameson who are very keen to leave war-torn Acapulco. En route, Passepartout gets himself into hot water when (whilst her husband is sleeping) Mrs. Jameson, herself French Creole, confesses an attraction to the Frenchman.