Doctor Who series 10: Steven Moffat's episode guide

Written by Frank Cottrell-Boyce, directed by Lawrence Gough. Guest star: Ralph Little

“Between here and my office, before the kettle boils, is everything that ever happened, or ever will. Make your choice.”

In the far future, at the edge of the galaxy, there is a gleaming, perfect city. This brand-new human settlement is said to hold the secret of human happiness – but the only smiles the Doctor and Bill can find are on a pile of grinning skulls. Something is alive in the walls, and the Emojibots are watching from the shadows, as the Doctor and Bill try to unravel a terrifying mystery…

Next: Episode 3 – Thin Ice

Read more in the new issue of Radio Times magazine, with interviews with Peter Capaldi, Pearl Mackie and much, much more