Watson Creator Shares What Would’ve Happened in Season 3

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The CBS series has concluded with its Season 2 finale. The network has decided not to renew the show for a third season, making this final episode the end of the series.

Following the show’s final episode, creator Craig Sweeny discussed the storyline with Watson. In the finale, Watson shared his dream of a life with Mary in London while in the hospital. The episode didn’t reveal whether this was a fantasy as he was dying, or if he actually survived his brain surgery. Sweeny has confirmed this uncertainty was intentional, allowing viewers to interpret the ending as they wish.

Season 2’s Finale Was Written as a Possible Series Finale

Writing the season finale was challenging because, even during filming, the writers weren’t sure how things would end. They decided to create a finale that felt complete, but added a short scene hinting at a potential future for Watson and Mary. This scene, taking place at Baker Street, is intentionally open to interpretation – it could even be a vision Watson has while possibly dying during surgery. The writer has a personal understanding of the scene but prefers to leave it up to the audience to decide what it means.

Initially, the show revealed that Watson had been hallucinating his old mentor, Sherlock (Robert Carlyle), due to a brain tumor. But the writers later decided to change course, revealing that Sherlock was actually still alive, though seriously ill. If the show had continued with a third season, Watson would have become Sherlock’s main doctor, and the storylines for the other characters would have been concluded.

There’d Have Been a Lot More of Watson and Sherlock Together in Season 3

According to Sweeny, Season 3 would have seen Watson act as Sherlock’s doctor, tending to the lingering health issues Holmes faced after Season 2. The show would have continued to focus on the unusual scientific cases that were central to its best episodes. A key storyline would have revolved around the characters Ingrid, Stephens, Adam, and Sasha completing their medical fellowships, and the introduction of new doctors to the team, as fellowships typically last three years.

It’s definitely sad to hear the show is ending – we still had so many stories we wanted to tell! But I’m so thankful we got to make 33 episodes. I especially loved writing the show because it let me and the team explore those really fascinating cases right on the edge of what we understand about the world, and Watson was the perfect vehicle for that every week.

It’s disappointing for fans to think about what could have been. The show was canceled after two seasons, along with another new comedy called DMV. While it gained some viewers, ratings declined during the second season, and frequent changes to the broadcast schedule – moving between Sundays and Mondays – likely contributed to the problem.

In any case, the entire series of Watson can be streamed on Paramount+.

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2026-05-04 07:11