CBS Watson Airs Series Finale After Cancellation

CBS's medical drama "Watson," starring Morris Chestnut as Dr. John Watson, aired its second-season finale on May 3, 2026, serving as the series finale following the network's cancellation announcement in late March.

The show, created by Craig Sweeny, reimagined Arthur Conan Doyle's Dr. Watson as the head of the Holmes Clinic in Pittsburgh, where he and his team tackled rare medical disorders amid the shadow of Sherlock Holmes's presumed death. Robert Carlyle portrayed Holmes, whose return in season two initially appeared as a hallucination induced by Watson's glioblastoma brain tumor. The finale confirmed Holmes's real-world presence, suffering from amnesia and radiation-related complications tied to a past case.

In the episode, titled "The Cobalt Fissure," Watson postponed his own surgery in Baltimore upon learning of Holmes's admission to the clinic. He diagnosed his friend's condition but suffered a near-fatal seizure from the delay. After recovering, Watson professed his love to his ex-wife Mary Morstan, played by Rochelle Aytes, who reciprocated. The story closed with Watson entering surgery and an ambiguous coda depicting the couple at 221B Baker Street in London, leaving...