This episode finds the Doctor (Jodie Whittaker), Yaz (Mandip Gill) and Dan (John Bishop) in 19th century China, where a small coastal village is under threat – from both the fearsome pirate queen Madame Ching (Crystal Yu) and a monstrous alien force which she unwittingly unleashes. Will the Doctor, Yaz and Dan emerge from this swashbuckling battle with the Sea Devils to save the planet?

The Thirteenth Doctor (Jodie Whittaker) and friends will kick-start 2022 with an action-packed spectacular episode on New Year’s Day. The festive special will feature guest stars Aisling Bea (This Way Up, Living With Yourself, Quiz), Adjani Salmon (Dreaming Whilst Black, Enterprice) and Pauline McLynn (Father Ted, Shameless). Sarah (Aisling Bea) owns and runs ELF storage, and Nick (Adjani Salmon) is a customer who visits his unit every year on New Year’s Eve. This year, however, their night turns out to be a little different than planned…