When a crashed spaceship calls upon the Doctor for help, he finds himself recruited into River Song's squad and hurled into a chase across the galaxy.
Episode rating
Cast of episode
- The Doctor
- River Song
- Nardole
- King Hydroflax
- Ramone
- Flemming
- Scratch
- Concierge
- Alphonse
- Receptionist
- King Hydroflax's Body
- Voice of Hydroflax
- Cyberman
- Cyberman
- Dalek
- Chinese Artisan