The premiere also revealed a casting surprise as [SPOILER] plays Moriarty.

Colin Bentley/CBS

Warning: This article contains spoilers from the premiere ofWatson.

Sherlock Holmes is dead.

“Pilot” – Coverage of the CBS Original Series WATSON. Morris Chestnut as Dr. John Watson.

Morris Chestnut on ‘Watson’.Credit:Colin Bentley/CBS

Moments later, all three of them go over a waterfall.

When Watson wakes up in a hospital bed, he doesn’t remember much about what happened.

Shinwell Johnson (Ritchie Coster) is there.

“Pilot” – Coverage of the CBS Original Series WATSON, scheduled to air on the CBS Television Network. Photo (L-R): Ritchie Coster as Shinwell Johnson and Morris Chestnut as Dr. John Watson

Ritchie Coster and Morris Chestnut on ‘Watson’.Colin Bentley/CBS

But six months later, Holmes is still very much a part of the story.

“He’s founded a clinic for you to run,” Shinwell says.

So, Watson does just that, in Pittsburgh of all places.

“Pilot” – Coverage of the CBS Original Series WATSON, scheduled to air on the CBS Television Network.

Sherlock Holmes' legacy is alive and well on ‘Watson’.Colin Bentley/CBS

Shinwell meets with Moriarty, who’s played by none other thanFresh Off the BoatstarRandall Park.

Watsonairs Sundays at 10 p.m. ET/PT on CBS.