'Sherlock' Season 3: Benedict Cumberbatch, Martin Freeman Tease 'Marriage' And A 'New Villain'

The PBS co-stars also hit the big screen in 'The Hobbit: The Desolation of Smaug' on December 13.

Sherlock lives.

The hit British crime drama returns to PBS in the U.S. on January 19 with, to hear Benedict Cumberbatch tell it, three main plot points. [Warning: minor spoilers for "Sherlock" season three ahead.]

"There's a reunion, there's a marriage and there's a new villain. That's pretty much it," the star behind the sleuth told MTV News while promoting his latest big-screen project, "The Hobbit: The Desolation of Smaug."

Luckily for us, Dr. John Watson, a.k.a. Martin Freeman, chose to elaborate.

"You get to see that Sherlock isn't dead, obviously," he said. "He did survive, as we sort of knew. You get to see where John is. From my point of view, John is in a completely different place. As far as he's concerned, Sherlock has been dead for two years and he's moved on. He has someone else in his life."

Cue the love interest!

"He's fallen in love and so you see him in that state of mind, and he's put his friend behind him. And now, sparks fly, I tell you!" Freeman revealed with praise for the show's "fantastically written scripts."

About that new villain, Freeman raved that Lars Mikkelsen's new character is "fantastic," "chilling" and "not even really there."

"[He's] like a dead man walking. He's really scary; scary in a different way to Moriarty," Freeman said. "Not crazy, crazy like Moriarty was, but sort of just chilling. I think you'll like him."

Fans hoping for an early peek at the new season will get their wish on Christmas, when BBC One will unveil a mini-episode titled "Many Happy Returns." Though it is unclear when the special will air Stateside, the bonus installment will be available on BBC's Red Button service and online beginning December 25, according to Hypable.

But first, Freeman and Cumberbatch star in Peter Jackson's "The Hobbit: The Desolation of Smaug," out December 13. Freeman reprises his role as the titular Hobbit, while Cumberbatch lends his voice (and a stunning motion-capture performance) to the titular dragon, as well the menacing Necromancer.