Deep inside her forgotten past, the Doctor and her Division allies corner Swarm and Azure in the Temple of Atropos... 'Once, Upon Time' is streaming now on BBC iPlayer (UK only) ➡️ https://bbc.in/3Jc0o9p Find out where to watch #DoctorWhoFlux here ➡️ http://doctorwho.tv/watch WATCH MORE: Doctor Who: Flux: https://bit.ly/DW-Flux Thirteenth Doctor: http://bit.ly/TheThirteenthDoctor Subscribe to Doctor Who for more exclusive videos: https://bbc.in/SubscribeToDoctorWho MORE ABOUT DOCTOR WHO: Welcome to the Doctor Who Channel! Step inside the TARDIS and embark on an epic journey through time and space. From the Doctor's first adventure in 1963 through countless regenerations, here you will find iconic moments, behind the scenes footage, exclusive content and more! This is the ultimate destination for all things from the Whoniverse. #DoctorWho This is a commercial channel from BBC Studios. Service information and feedback: https://www.bbcstudios.com/contact/contact-us/