Doctor Who: What is the "swarm" in series 13?

Before the big news of his and Jodie Whittaker's departure from Doctor Who, series boss Chris Chibnall dropped a major clue for what we can expect from series 13. But what did he mean by "swarm," and how important is it to the main story? In this week's podcast we try our best to find out the answer, whether that's through looking through Doctor Who's history or going more abstract. For all the latest TV, movie and entertainment news, interviews, comment and analysis visit: http://www.radiotimes.com/ You can follow us on Flipboard: https://flipboard.com/@RadioTimes Like our page on Facebook: https://www.facebook.com/radiotimes/ Follow us on Twitter: https://twitter.com/RadioTimes And we're here on Instagram: https://www.instagram.com/radiotimes/?hl=en Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit podcastchoices.com/adchoices