With the Doctor Who season coming to a close, fans can look forward to the annual Christmas special, a first for Peter Capaldi in the role of the Doctor.

In the role of St. Nicholas will be Nick Frost, but things are not merry or joyous as hideous creatures are lurking about (most likely trying to kill our favorite characters) and it is up to the Doctor once again to save the day.

In the trailer The Doctor simply says, “It’s Christmas, the North Pole,” adding “Who you gonna call?” Also appearing in the special will be Michael Troughton, Natalie Gumede, Faye Marsay and Nathan McMullen. Steven Moffat wrote the episode himself, and although BBC released the teaser-trailer, the network has not announced the premiere date at this time.