In a spirited bid to support a political candidate, Captain Robert Jinks teams up with friends to form a quirky marching club, earning him the whimsical title of Captain Jinks of the Horse Marines. When word arrives that the illustrious opera diva Madame Trentoni is coming from Europe, Jinks and his comrades rush to the docks in eager anticipation. Confident in his charm, Jinks wagers a hefty sum with his friends that he can win her heart. However, upon meeting the enchanting Madame Trentoni, he finds himself utterly captivated and forfeits the bet, opting instead to pursue her romance unencumbered by the stakes of a wager. As their love story unfolds, an unexpected twist arises when the IOU from the bet resurfaces at the most inconvenient moment... - Summary by Son of the Exiles