The trailer opens on the Doctor (Jodie Whittaker) in her prison jumpsuit, in a cell surrounded by dozens of her old foes (I spot at least one Weeping Angel), while the rest of Team TARDIS unite with Captain Jack (John Barrowman), the old immortal friend of the Doctor and spin-off star who makes a welcome return after a frustratingly short cameo in season 12.
Bradley Walsh has confirmed that he will be leaving Doctor Who along with his co-star, Tosin Cole, following the festive special - and we don't want them to go! "It is quite sad and poignant is the word".
Speaking about what he'd miss most, Tosin added: "There are too many things to list here, but it has to be the team on the screen and behind it as well as the awesome fans".
"It's been an honour to work on such a cultural institution with fans across the world". I get that. But's it's something to look forward to.
Walsh said viewers should "expect a lot of poignancy" from the episode.
Both actors also shared what they will miss the most about working on the series.
For his part Walsh detailed his highlights about working on Doctor Who. I mean, Brad couldn't cope with it at all...
Added Chibnall: "I hope it feels like a good send-off for those two characters".
Although the Thirteenth Doctor is losing two companions in the Holiday Special, the Time Lord will also be reunited with another companion who just happens to be a fan-favorite. "Our times overseas, when we were in Spain, South Africa, I just loved it". "So I think it would be safe to say that she is struggling without the Doctor but is probably trying that bit more than the boys to solve this".
The festive special episode will see a host of exciting guest artists including John Barrowman MBE who will be reprising his role as Captain Jack Harkness alongside Chris Noth who will be back as the disgraced Jack Robertson.
Cole said: "Working with the Daleks is sort of like working with Doctor Who royalty".