The new year will start off with the fate of the world hanging in the balance. At least according to the official trailer for the Doctor Who New Year’s special, Resolution, which will premiere Tuesday, Jan. 1 at 8 PM ET/PT on BBC America.

In the New Year’s Day special, a terrifying evil is stirring from across the centuries of Earth’s history. The Doctor (Jodie Whittaker), Ryan (Tosin Cole), Graham (Bradley Walsh) and Yaz (Mandip Gill) are braced to overcome this threat to Planet Earth.

Tonight also marks the season finale for the first show episodes with a female doctor, Jodie Whittaker. And as noted by Deadline critic Dominic Patten in his comprehensive season review, it’s been an interesting ride for the latest Time Lord.

The season finale episode, The Battle of Ranskoor Av Kolos, starts on – wait for it – the planet of Ranskoor Av Kolos, where lies the remains of a brutal battlefield. But as the Doctor, Graham, Yaz and Ryan answer nine separate distress calls, they discover the planet holds far more secrets. Who is the mysterious commander with no memory? What lies beyond the mists? Who or what are the Ux? The answers will lead the Doctor and her friends towards a deadly reckoning.

Guest stars in the episode include Phyllis Logan, Mark Addy and Percelle Ascott. It was written by showrunner Chris Chibnall and directed by Jamie Childs.

Doctor Who claims to be the fastest-growing scripted series in all of television this year in the US. with gains in Nielsen live/same day viewership over the previous season in total viewers and both the 18-49 and 25-54 demos. The long-running series claims it’s up 47% in total viewers, 46% in adults 18-49, and 32% in adults 25-54.

Growth came from women 18-34, whose audience doubled from last season, ranking Doctor Who among the top-15 cable dramas this year in this hard-to-reach demo. In Nielsen live+7 ratings, Doctor Who is averaging 1.6 million viewers per episode (through eight episodes), up 20% percent from the 12th Doctor’s final season (1.3 million) and ahead of the first seasons of the 9th, 10th, and 11th Doctors. Doctor Who also ranks among the year’s top five drama series on social media.

To celebrate the milestone, the series announced via Twitter its next anticipated round of new shows.