Watson Season 1 is a 13-episode medical mystery series starring Morris Chestnut as Dr. John Watson. It ran from January 26 to May 11, 2025, and ends with the two-part story “Your Life’s Work.” Rather than a conventional Sherlock Holmes crime procedural, the show centers on Watson’s rare-disorders clinic, with Holmes and Moriarty remaining part of the larger story.
What is Watson about?
Six months after Sherlock Holmes’s death at Moriarty’s hands, Dr. John Watson returns to medicine and leads a clinic that treats patients with rare disorders. The cases give the series its weekly medical-investigation focus, while the continuing Holmes and Moriarty story supplies a broader mystery.
CBS describes the series as “a medical show with a strong investigative spine.” Its premise combines a modern take on the Holmes-and-Watson characters with medical cases, rather than following Watson as a conventional detective solving crimes. CBS’s series description also says Holmes later resurfaces.
How many episodes are in Watson Season 1?
Season 1 has 13 episodes. CBS’s episode guide lists the season premiere, “Pilot,” on January 26, 2025, and the finale, “Your Life’s Work, Part 2,” on May 11, 2025.
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Watson Season 1 episode guide and order
These titles, dates, and summaries follow CBS’s Season 1 episode guide. The medical conditions and symptoms are fictional story elements, not diagnostic or treatment guidance.
- “Pilot” — January 26, 2025. Watson returns to medicine and leads a rare-disorders clinic as the threat from Moriarty continues after Holmes’s death.
- “Redcoat” — February 16, 2025. The team investigates a man with a bullet lodged in his head who believes he is a Scottish soldier.
- “Wait for the Punchline” — February 23, 2025. A comedian collapses during an open-mic night, and her personal history complicates the case.
- “Patient Question Mark” — March 2, 2025. A patient’s cancers and lesions lead the team to consider Cowden syndrome, connecting the case to Sasha’s medical-school past.
- “The Man with the Glowing Chest” — March 9, 2025. Watson weighs an unorthodox surgery for a patient with sickle-cell disease, raising ethical questions for the team.
- “The Camgirl Inquiry” — March 16, 2025. Stephens asks Watson for help after a woman collapses during a video call, and the team tries to find her.
- “Teeth Marks” — March 23, 2025. A patient’s memory resets every three minutes as Watson experiences auditory hallucinations and questions his decline.
- “A Variant of Unknown Significance” — March 30, 2025. Irene Adler’s son is admitted with temporary paralysis, drawing Watson and the fellows into a search for a cure.
- “Take a Family History” — April 13, 2025. Ingrid’s sister develops side effects from secret treatments, while Watson and Mary bond over a tragedy.
- “The Man with the Alien Hand” — April 20, 2025. Watson treats a patient with alien hand syndrome while considering whether he caused his brother’s death.
- “The Dark Day Deduction” — April 27, 2025. Watson confronts a traumatic Army memory as a friend appears to be having a psychotic break.
- “Your Life’s Work, Part 1” — May 4, 2025. Team members become ill after being targeted, and Watson reveals a new project.
- “Your Life’s Work, Part 2” — May 11, 2025. The team continues trying to save those targeted in the plot as Watson’s new project remains part of the story.
Who is in the cast?
Morris Chestnut stars as Dr. John Watson. The premiere announcement from Paramount Press Express also names the following main cast members:
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- Eve Harlow
- Peter Mark Kendall
- Ritchie Coster
- Inga Schlingmann
- Rochelle Aytes
The same announcement credits Craig Sweeny as the premiere’s writer and Larry Teng as its director.
What happens in the Season 1 finale?
The finale is a two-part story titled “Your Life’s Work.” In Part 1, team members are targeted and become ill, and Watson reveals a new project. Part 2 follows the team’s effort to save those caught in the plot. CBS’s episode guide dates the installments May 4 and May 11, 2025, respectively.
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Where can you watch Watson?
CBS named Paramount+ as a streaming option in its January 2025 premiere announcement. The release described the then-current US terms: Paramount+ with SHOWTIME subscribers could stream live through their local CBS affiliate and watch on demand, while Paramount+ Essential subscribers could watch on demand the day after broadcast. Those historical terms do not establish the show’s current availability, pricing, or access in every country. Check the current Paramount+ catalog and local CBS listings for your region.
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