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The Best Episodes of Watson

Every episode of Watson ranked from best to worst. Let's dive into the Best Episodes of Watson!

Best episode
S2E11 The Tunnel Under the Elms
7.9327 votes
Worst episode
S1E1 Pilot
6.3684 votes
Top season
Season 2
7.5avg
Binge time
23h 41m
33 episodes

Seasons2

Episode Rankings

  1. #1 Fan Favorite
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    Watson Season 2 Episode 11 - The Tunnel Under the Elms
    7.9/10(327 votes)
    S2:E11

    Watson and the fellows race against the clock to save a man and his pregnant wife from a terrifying sinkhole. Meanwhile, Ingrid’s future with her therapy group becomes unclear.

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  2. Watson Season 2 Episode 8 - Livvy Sees the Doctor
    7.9/10(205 votes)
    S2:E8

    UHOP veers into terror when Watson and the fellows are taken hostage by a man with a bomb strapped to his chest who is desperate to find a cure for his 9-year-old daughter’s illness.

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  3. Watson Season 2 Episode 5 - Lucky
    7.8/10(220 votes)
    S2:E5

    While visiting another hospital, Watson becomes convinced that a coma patient is suffering from locked-in syndrome and has been mistaken for a coma patient for over a decade. After the patient is transferred to UHOP for treatment, he shocks the team with chilling messages. Meanwhile, Sherlock is back in town and is staying with Watson.

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  4. Watson Season 2 Episode 1 - A Son in the Oven
    7.7/10(278 votes)
    S2:E1

    Watson and the fellows spring back into action when Mary’s mother accidentally poisons herself while suffering from a rare form of dementia that is progressing with impossible speed. Meanwhile, Sherlock Holmes resurfaces after being presumed dead.

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  5. Watson Season 2 Episode 12 - A Family Meal
    7.7/10(183 votes)
    S2:E12

    When a patient arrives at the Holmes Clinic plagued by a mysterious neurological disorder, Watson and the fellows discover they were forced to eat their parents amid a childhood survival incident. Meanwhile, Adam is struggling with how his future will change as a father.

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  6. Watson Season 2 Episode 3 - Expletive Deleted
    7.6/10(225 votes)
    S2:E3

    Watson and the team work alongside Laila to help a patient named Maxine, a 30-year-old who looks 10 years old.

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  8. Watson Season 2 Episode 15 - A Third Act Surprise
    7.6/10(160 votes)
    S2:E15

    Watson and the fellows race to save the life of a young woman who needs a lifesaving kidney donation. Meanwhile, Sherlock returns to help crack unsolved cases in Pittsburgh.

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  9. Watson Season 1 Episode 11 - The Dark Day Deduction
    7.5/10(405 votes)
    S1:E11

    Watson confronts a traumatic event from his Army days that still weighs heavily on him when his Army veteran friend’s wife reaches out begging for help when her husband is seemingly having a psychotic break. Meanwhile, Shinwell is asked for one last favor by Moriarty.

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  10. Watson Season 1 Episode 8 - A Variant of Unknown Significance
    7.5/10(302 votes)
    S1:E8

    Watson runs into brilliant con artist and an old friend of Sherlock Holmes, Irene Adler, when her son Angus is admitted to UHOP for temporary paralysis. The fellows help Watson after he grows fond of Angus and pursue various leads to find a cure to his illness.

    Director:Larry Teng

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  11. Watson Season 1 Episode 13 - My Life's Work (2)
    7.5/10(265 votes)
    S1:E13

    Watson and the team are faced with an impossible choice when two lives hang in the balance, but they only have one vial of antidote available. Meanwhile, Shinwell races to help the team, and Watson goes head to head with Moriarty.

    Writer:Unknown

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  12. Watson Season 2 Episode 2 - Back from the Dead
    7.5/10(231 votes)
    S2:E2

    A microbiology researcher returns from an expedition to Siberia, leading to a possible outbreak of a revived pathogen. Watson reconnects with Sherlock Holmes.

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  13. Watson Season 2 Episode 7 - Giant Steps
    7.5/10(205 votes)
    S2:E7

    Watson's father, Hamish, visits UHOP to introduce Watson and the fellows to his protégé, Annabelle, a saxophone prodigy with musically induced blackouts. As Annabelle's condition worsens, Watson must confront his long-standing tensions with his father in order to save her.

    Director:Amanda Row

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  14. Watson Season 2 Episode 6 - Buying Time
    7.5/10(195 votes)
    S2:E6

    Watson and the fellows race against time to save the life of Xavier, a 21-year-old athlete with a fast-growing, seemingly incurable cancer. Meanwhile, Mycroft Holmes lets Watson know his team’s work at UHOP may no longer have funding available.

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  15. Watson Season 2 Episode 9 - Shannon Says Bex Loves Micah
    7.5/10(186 votes)
    S2:E9

    Watson and the fellows help Laila’s son Micah – who was injured in a car accident while pursuing his crush, Bex, with the help of his AI chatbot.

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  16. Watson Season 2 Episode 19 - Rule of Three
    7.5/10(148 votes)
    S2:E19

    As Adam's wife goes in for a C-section to deliver triplets, chaos ensues when their OB-GYN passes out in the operating room. Meanwhile, a severe storm detours Watson and Mary's trip to find a renowned doctor to remove Watson's brain tumor.

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  17. Watson Season 2 Episode 18 - Sic Semper Tyrannis
    7.5/10(145 votes)
    S2:E18

    Following his brain tumor diagnosis, Watson goes on medical leave to seek treatment, leaving Mary in charge of The Holmes Clinic as a notorious South American dictator demands Watson see to his mysterious autoimmune condition personally. Meanwhile, Ingrid grows more concerned about Beck’s obsession with Sasha.

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  18. Watson Season 1 Episode 6 - The Camgirl Inquiry
    7.4/10(314 votes)
    S1:E6

    Stephens musters the courage to ask Watson to help him when his camgirl suddenly collapses during a video call. He does not know anything about her real life, so the team must act quickly to locate her before it's too late.

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  19. Watson Season 1 Episode 9 - Take a Family History
    7.4/10(287 votes)
    S1:E9

    Ingrid's lies come back to haunt her when her sister Gigi needs to be treated by the team after she develops side effects to the secret treatments Ingrid put her through. Also, Watson and Mary bond over a tragedy.

    Writer:Unknown

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  20. Watson Season 2 Episode 4 - Happy When It Rains
    7.4/10(201 votes)
    S2:E4

    Watson and the team jump into action when four new patients are brought to UHOP with wounds that appear to be infected with a flesh-eating bacterium following a tornado. Meanwhile, Shinwell searches for meaning as a nursing student and Adam’s wedding to Lauren risks being halted.

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  21. Watson Season 2 Episode 13 - For a Limited Time Only
    7.4/10(173 votes)
    S2:E13

    Watson and the fellows fight to revive a 30-year-old woman, Audrey, after her heart inexplicably stops repeatedly until they discover she has a rare phenomenon called Lazarus syndrome. As these revivals continue, she uses the short window of time available to right her greatest wrong.

    Director:Larry Teng

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  22. Watson Season 2 Episode 20 - The Cobalt Fissure
    7.4/10(170 votes)
    S2:E20

    A seemingly random murder outside of UHOP sets the stage for the arrival of someone from Watson and Sherlock Holmes' past.

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  23. Watson Season 2 Episode 17 - Unsolved Mysteries
    7.3/10(151 votes)
    S2:E17

    In the wake of the car accident, Watson and Laila lie injured and awaiting rescue as the team races to find them before it’s too late. Meanwhile, in a state between life and death, Watson’s mind plays out a modern-day investigation of a case that has long haunted him.

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  24. Watson Season 2 Episode 16 - Respect the Process. Respect the Quirks
    7.3/10(156 votes)
    S2:E16

    Watson investigates a case involving a mentally unstable mother, with the woman's delusions serving as a mirror to his own newly discovered hallucinations.

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  25. Watson Season 2 Episode 14 - Wrongful Life
    7.3/10(161 votes)
    S2:E14

    Watson is sued for Wrongful Life by a long-term patient suffering from VACTERL association, after undergoing multiple painful surgeries.

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  26. Watson Season 1 Episode 12 - My Life's Work (1)
    7.3/10(255 votes)
    S1:E12

    When part of the team falls ill after becoming targets of a sinister plot, it becomes an all-hands-on-deck situation to save them before it's too late. Meanwhile, Watson announces a new ambitious project that he has been working on.

    Writer:Unknown

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Best Episodes Summary

"The Tunnel Under the Elms" is the best rated episode of Watson. It scored 7.9/10 from 327 votes. Directed by Sheelin Choksey and written by Jason Inman, it aired on March 1, 2026.

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