“I love the 1960s Daleks and last week’s episode brought them closer to their original concept than any other modern Doctor Who story, with their weird and wonderful Tomorrowland-style city, harking back to the ‘mysterious outer-space robot people’ of the 1960s annuals,” Stuart  told RadioTimes.

“The city also had shades of Metropolis, which inspired the typography and I liked the idea of contrasting ragged young Davros on the battlefield with sleek lines and stark shapes of his future world. With the colour and the angles, there’s probably a little touch of propaganda art in there too – look out for Davros pasting it into to the side of a Dalek come election time…”

Synopsis: 

There are places the Doctor should never go. Planets where his life would not be worth an hour’s purchase. When he finds himself in the very worst of these, without his Tardis, or his sonic, and with his best friends murdered in front of his eyes, he has only his wits to keep him alive. And perhaps something else. What is the Doctor’s confession? Why did he really leave Gallifrey all those centuries ago? And is it a secret he is willing to give up?

‘Doctor Who’ Series 9, Episode 2 “The Witch’s Familiar” airs September 26th, 2015 on BBC America at 9pm.