The Doctor agrees to tutor Bill, a would be university student, but a strange puddle and the mysterious disappearance of Bill's friend interrupt the tutition. Will the Doctor, Bill and Nardole get to the bottom of things? Will the Doctor gain a new companion? And what IS the Doctor hiding in the vault...?
Did You Know?
When The Doctor, Bill and Nardole land on another planet, the windows of the TARDIS are seen completely white (which means the lights are on). When the camera gets near to the TARDIS, the lights are off and in the distant shots the lights are on again. See more
[inside the Tardis for the first time
Look at this place! It's like a...
A really posh kitchen, all metal. What happened to the doors, though? Did you run out of money?
Doctor Who Theme
Written by Ron Grainer
Performed by BBC National Orchestra of Wales See more