The captain of the tugboat Cyclone, André Laurent, rushes off to save the Mirva. He abandons his sick wife Yvonne and the couple celebrating their marriage. In the early morning, the Cyclone tugs the Mirva ashore with Catherine aboard. The captain falls in love with Catherine and leaves his wife for her. When he offers to come away with Catherine, she declines and leaves him. He will have lost the two women he loved.