"London, 1889. A woman is being held prisoner while she awaits a forced marriage. Another has been kidnapped, and yet another disappears... As Enola seeks to rescue the three women, her brother embarks on a quest of his own. When Sherlock receives a mysterious package, he knows he'll need Enola's help to decipher its meaning. In the end, the three Holmes siblings will have to work together to answer the question that started it all: What happened...