Original air date: 04/30/2018 Runtime: 40:34 min. As Holmes confronts a medical diagnosis that threatens both his career and sobriety, he meets Michael (Desmond Harrington), a man who credits Sherlock for helping him conquer his own addiction. Also, Holmes and Watson are hired by a reformed party girl heiress to find her missing partner in a years-old sex tape that has just leaked online.
Original air date: 05/07/2018 Runtime: 42:55 min. Watson and her half sister, Lin (Samantha Quan), have conflicting reactions when their estranged biological father dies. Also, Holmes and Watson find themselves on the hunt for a stolen plutonium shipment they fear will be used to make a dirty bomb after a department of energy inspector is killed with a lightning gun.
Original air date: 05/14/2018 Runtime: 42:43 min. Holmes and Watson enter the world of rare antiquities when they investigate a case in which victim was killed during a Revolutionary War reenactment. Also, as Holmes grows frustrated with the length of his cognitive recovery, he finds solace in his growing friendship with Michael (Desmond Harrington).
Original air date: 06/04/2018 Runtime: 42:55 min. Holmes and Watson enter the world of nuclear security when they investigate the murder of an ex-Yakuza gang member. Also, Captain Gregson is blindsided by a stunning personal confession from his daughter, Hannah (Liza J. Bennett), a police sergeant.
Original air date: 06/11/2018 Runtime: 42:46 min. Holmes and Watson find themselves on the hunt for a serial killer after a murder rocks their inner circle. Also, Holmes’ neurological recovery regresses and his sobriety wavers as his commitment to catching the killer grows into an obsession.
Original air date: 06/25/2018 Runtime: 42:41 min. Holmes’ former sobriety sponsor, Alfredo (Ato Essandoh), asks for his help with an illegal endeavor in order to save his brother. Also, Holmes and Watson investigate the poisoning of a biology professor who was working on a secret genetics project prior to being killed.
Original air date: 07/02/2018 Runtime: 42:55 min. Sherlock and his father, Morland Holmes (John Noble), attempt to repair their strained relationship upon learning of a death within their family. Also, Holmes and Watson discover a link between their latest case and the world of Egyptian antiquities when they search for a killer who tried to mummify his victim.
Original air date: 07/16/2018 Runtime: 42 min. Holmes engages an old foe to protect his father after he learns Morland (John Noble) is in danger of being killed. Also, Holmes and Watson search for a killer connected to the tobacco industry when a lawyer who was in the process of reviewing a major cigarette distributor’s finances is murdered.