What connects a missing astronaut in the Indian Ocean, birds behaving strangely in Peru and a US naval officer who washes up on a Madagascan beach?

The Doctor, Yaz, Ryan and Graham split up to investigate mysterious events across 21st century planet Earth. As the mystery deepens, and lives are put at risk, the TARDIS team face a deadly race against time to save humanity.


  • Jodie Whittaker as The Doctor
  • Mandip Gill as Yaz
  • Tosin Cole as Ryan
  • Bradley Walsh as Graham
  • Joana Borja as Gabriela Castillo
  • Thapelo Maropefela as Aramu
  • Molly Harris as Suki Cheng
  • Warren Brown as Jake Willis
  • Matthew McNulty as Adam Lang


  • Written by Pete McTighe and Chris Chibnall
  • Directed by Jamie Stone

Doctor Who continues Sunday 2nd February at 7:10pm on BBC One