The Halloween Apocalypse

"The Halloween Apocalypse", prefixed frequently with either "Chapter One" or "Flux", is the premiere episode of the thirteenth series of the British science fiction television programme Doctor Who, and the first part of the six-episode serial known collectively as Doctor Who: Flux. It was first broadcast on BBC One on 31 October 2021. It was written by showrunner and executive producer Chris Chibnall, and directed by Jamie Magnus Stone. The episode stars Jodie Whittaker as the Thirteenth Doctor, Mandip Gill as Yasmin Khan, and John Bishop as new companion Dan Lewis. The episode features the return of the Sontarans and Weeping Angels. Plot The Doctor and Yaz are in pursuit of Karvanista, one of the dog-like Lupari species, for reasons unclear to Yaz. They escape from his capture and follow him to Earth in the TARDIS. En route, the Doctor experiences a psychic vision of Swarm, a mysterious being, escaping from its millennia-long imprisonment by the Division. In present day Liverpool, Dan Lewis arranges a date with museum worker Diane before attending a shift at the soup kitchen and heading home. Karvanista breaks into his house and transports him onto his Lupari ship. The Doctor and Yaz arrive after Dan's abduction, investigating his house and discovering what appears to be a Lupari invasion fleet approaching Earth. They escape just before Dan's house is collapsed by a trap set by Karvanista. They then briefly encounter Claire, a woman who claims to have met the Doctor in the latter's future. Departing, the Doctor and Yaz are confused by the appearance of a second doorway in the TARDIS' console room. Claire is subsequently captured by a Weeping Angel.