In 1870s America, a peaceful American settler kills his family's murderer which unleashes the fury of a notorious gang leader. His cowardly fellow townspeople then betray him, forcing him to hunt down the outlaws alone.
King Edward asks Sherlock Holmes to perform one more task before his retirement: to safeguard the Star of Africa on a trip to Cape Town. Soon the fabled jewel is stolen and several people end up being murdered.
