McGinty and his vicious band of outlaws, the Scowrers, have launched an attack on the peaceful town of Vermissa. Sherlock, Billy, and the villagers set traps as part of a clever plan to defend themselves, but when the enemy arrives in far greater numbers than expected, they find themselves backed into a corner. Meanwhile, William has learned of the threat Sherlock faces and races to his rescue. Together, the men make a solemn vow on their ongoing search for redemption. This case of the Great Detective vs. the Lord of Crime comes to a close in this captivating conclusion!