WATSON Season 2 Episode 20 Photos: Series Finale The Cobalt Fissure

The series finale of Watson Season 2 Episode 20, titled “The Cobalt Fissure,” is airing tonight, and it’s set to be a nail-biting episode. A shocking murder outside of UHOP sparks a chain of events that brings a mysterious figure from Watson and Sherlock Holmes’ past back into the picture. As the investigation unfolds, the case becomes deeply personal, setting the stage for a dramatic conclusion to the series.

This final episode is packed with long-standing connections, escalating tensions, and high-stakes confrontations that promise to leave viewers on the edge of their seats. It’s sure to be a powerful and unforgettable ending to the series.

If you need a refresher before diving into the finale, you can revisit Watson Season 2 Episode 19, “Rule of Three,” where life-threatening medical emergencies and surprising revelations laid the groundwork for the intense finale.

Don’t forget to tune in to CBS on Sunday, May 3, from 9:59–11:00 PM, ET/PT to catch “The Cobalt Fissure” live. And if you happen to miss it, you can stream it on Paramount+ the next day.

The episode is written by Rebecca Hofherr and Sharon Moalem, directed by Larry Teng, and features guest star Eddie Izzard as Sebastian Moran.

As we say goodbye to the series, “The Cobalt Fissure” promises to bring everything full circle with a case that delves deep into Watson’s past. With new revelations and familiar faces making a return, the finale is sure to deliver a satisfying and emotional conclusion.