Overview
"War of the Sontarans", prefixed frequently with either "Chapter Two" or "Flux", is the second episode of the thirteenth series of the British science fiction television programme Doctor Who, and of the six-episode serial known collectively as Doctor Who: Flux. It was first broadcast on BBC One on 7 November 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, alongside Mandip Gill and John Bishop as her companions, Yasmin Khan and Dan Lewis, respectively.
Plot
The Doctor, Dan, and Yaz are transported to Sevastopol during the Crimean War, where they all briefly meet Mary Seacole before Yaz and Dan are transported away through time. The Doctor is unable to enter her TARDIS to track and find them. Remaining in Sevastopol, the Doctor realizes Britain's opponents in the war are now the Sontarans, with all traces of China and Russia replaced with Sontar. Tricking a scout into granting parley with his general, the Doctor discovers that seconds prior to the Lupari shielding Earth from the Flux in the previous episode, the Sontarans took advantage of the Flux and rewrote human history to feed their species’ hunger for battle.
Yaz materializes in the Temple of Atropos on the planet Time, where she briefly encounters Joseph Williamson before befriending Vinder. They are both recruited as repairers of the temple’s mainframe. Swarm and Azure arrive to take control of the temple and use its power for themselves.
From Wikipedia (CC BY-SA 4.0).