A trio of American crooks board a ship bound for Europe, intending to get rid of $100,000 in stolen dough. With detective John Wade breathing down their necks, the crooks stash the loot in the trunk belonging to vacationing schoolmarm Mary Smith.
While crossing on the train ferry to New Orleans, roving reporter Addison Francis Murphy borrows money from singing hillbilly "Carolina," then loses it all in a crap game. Outside on deck, Murphy sees two men shaking hands, and after he looks away, hears a splash of water and discovers both men have disappeared...