
Now that Doctor Who showrunner Russell T. Davies has returned, the show is going back to the classics. That means a new Doctor, played by Ncuti Gtawa, returning cast members like David Tennant and Catherine Tate, and a new initiative restoring the time travel show’s history. But one of the biggest Doctor Who traditions Davies brought back is the Christmas special, a holiday-themed episode airing on Christmas night — for four years before Davies took over, the special aired on New Year’s Day.
Last year, the Christmas special introduced us to the 15th Doctor and his new companion, Ruby Sunday (Millie Gibson). Now, Ruby is back home with her family, and the Doctor is getting into new hijinks with a mysterious woman named Joy (Nicola Coughlan) in this year’s Christmas special, aptly titled “Joy to the World.” In a new trailer for the special, we see the two encounter prehistoric creatures, a green and scaly Silurian, and, confusingly, another version of The Doctor. Check out the full trailer below.