Jacqueline Floriot is driven from her home by her husband Louis, a deputy attorney of Paris, because of his unjust suspicions regarding her relations with another man. Floriot forbids Jacqueline to see her baby boy, who is dangerously ill, and when informed that the boy believes her dead, she attempts suicide.

1860 ushers in the era of iron ships, Richard Sibley, a builder of wooden ships, stubbornly resists the change, which leads him to forbid the marriage of his daughter Rose to John Rhead, a proponent of the new method. This injustice outrages John's sister Gertrude so much that she breaks off her engagement to Sibley's son Sam. Meanwhile, John and Rose elope.

A victim of hypnotism begins to have compulsions to steal.