Written by Steven Moffat
"Imagine if time happened all at once. Every moment of your life laid out around you… like a city. Streets full of buildings made of days. The day you were born. The day you die. The day you fall in love. The day that love ends. A whole city built from triumph and heartbreak and boredom and laughter and cutting your toenails. It's the best place you will ever be. Time is a structure relative to ourselves. Time is the space made by our lives. Where we stand together forever. Time and relative dimension in space. It means 'life'."
| Episode Title | Premiere Date |
| The Pilot | 15/04/2017 |
Two worlds collide when the Doctor meets Bill. A chance encounter with a girl with a star in her eye leads to a terrifying chase across time and space. Bill's mind is opened to a universe that is bigger and more exciting than she could possibly have imagined. But who is the Doctor, and what is his secret mission on Earth?
| Character | Cast |
| The Doctor | Peter Capaldi |
| Bill | Pearl Mackie |
| Nardole | Matt Lucas |
| Moira | Jennifer Hennessy |
| Heather | Stephanie Hyam |
| Voice of the Daleks | Nicholas Briggs |
| Role | Crew |
| Writer | Steven Moffat |
| Director | Lawrence Gough |
| Producer | Peter Bennett |
| Executive Producer | Brian Minchin |
| Executive Prodcer | Steven Moffat |
