Cynthia of the Minute plot
While looking for work in New York, Cynthia, a young English girl, meets Bruce Crittenden and George Rhode who introduce her to Madame Savarin, a wealthy woman looking for a companion for a sea voyage. She hires Cynthia and while at sea, Cynthia discovers that Bruce is the ship's steward. Cynthia's father was a famous radio expert who taught her how to read code, allowing her to overhear a plot to sink the ship and steal Madame Savarin's jewels. Shortly thereafter, the crew mutinies, and while Rhode and Bruce fight the crew, Cynthia raises the alarm.