Etchégor, a wealthy Basque peasant is in love with the beautiful American Majesty Parnell. Her husband, about to be arrested for theft, seeks to forge an alibi.

When a Parisian bank clerk is tasked with transporting valuable stock certificates to Nice, his scheming rival steals the documents to ruin him and win over a wealthy heiress. Boarding the same train, a group of passengers unites to thwart the villain, leading to a dangerous showdown as he resorts to extreme violence to cover his tracks.