After a two-year hiatus, the beloved BBC seriesSherlockwill finally return with a new Christmas Special dubbedThe Abominable Bride, airing New Year’s Day on BBC One in the U.K. and on PBS in North America. To get fans ready for this highly-anticipated event,BBC Onehas released a new trailer, which offers our first look at the title character. Unlike the regularSherlockseries, which is set in present day, thisChristmas Specialtakes both Holmes (Benedict Cumberbatch) and Watson (Martin Freeman) back to the year 1895.

Dr John Watson, meet Mr Sherlock Holmes. We’ve been here before - but what if this wasn’t the modern day but the late Victorian period? What if the world’s most famous consulting detective and his best friend lived in a Baker Street of steam trains, hansom cabs, top hats and frock-coats? Welcome to ‘Sherlock’ in 1895! Some things, though, remain reassuringly the same. Friendship, adventure and especially, murder. Why is Thomas Ricoletti a little surprised to see his wife dressed in her old wedding gown? Because, just a few hours before, she took her own life.

Mrs Ricoletti’s ghost now appears to be prowling the streets with an unslakeable thirst for revenge. From fog-shrouded Limehouse to the bowels of a ruined church, Holmes, Watson and their friends must use all their cunning to combat an enemy seemingly from beyond the grave and the final, shocking truth about… the Abominable Bride! The episode has been co-written bySteven Moffatand Mark Gatiss with performances by Rupert Graves, Una Stubbs,Louise Brealeyand Amanda Abbington. It is directed by Douglas Mackinnon (Doctor Who, Line of Duty).

Sherlock is a global phenomenon, engaging audiences from Berlin to Beijing, from Texas to Tokyo. The show has sold to over 240 territories across the world, won 12 BAFTAs, 7 Emmys® and a prestigious Peabody Award as well as accolades at the Edinburgh TV Festival and the Television Critics Association.Sherlockmade its mark in U.S. pop-culture being one of only three British TV shows that have appeared on the cover of Entertainment Weekly. Here’s whatSherlockco-creatorSteven Moffathad to say in a statement.

Sherlock: The Abominable Bride will be shown on Masterpiece on PBS stations andpbs.orgthe same day as the UK on Friday, January 1 at 9 PM ET, with an on-air encore on Sunday, January 10 at 10 PM ET.Benedict CumberbatchandMartin Freemanwill be back forSherlock Season 4, debuting at an undetermined date in 2016. Take a look at the new trailer forThe Abominable Bride, before it airs on New Year’s Day.