We watch "Flux: Chapter One - The Halloween Apocalypse" (Series 13, Episode 1) where the Doctor and Yaz pick up stray companion Dan. Whilst our remaining Whoby crew adopt this good-good-boy for our abbreviated-because-of-Covid-season, assorted shenanigans occur. Said shenanigans include appearances by dog-people (the Lupari), crystalline-people (Swarm and Azure), and... potato-people (Sontarans?). Fortunately, the Flux itself is totally harmless... doesn’t kill billions of lifeforms or nothing... wait... what? Oh motherfluxers...