Sherlock's father, Morland (John Noble), becomes Sherlock and Joan's prime suspect in a murder investigation after one of his employees is killed under the guise of a robbery.
When a man that Joan Watson had employed as a secret mole inside Morland Holmes' organization is murdered during a robbery, Joan and Sherlock suspect that he was actually the target and begin investigating, searching for proof that Morland was behind the man's death.—nlghtcreature22-33-793191