As a story about how the past became the present (which makes us, in relation to its characters, people of the future), it is very much in line with its subject, and has been made with much the same mix of enchantment and suspense.

Gatiss has written several Doctor Who scripts, and it's striking to see how he adapts the story behind the story into a vintage Who tale: A tale of misfits triumphing over long odds.

Wonderfully written and beautifully realised, this period piece crackled with the affection of a true fan.

Whether you are a Doctor Who fan or not, An Adventure in Space and Time is a heart-warming and brilliantly piece of drama which deserves full praise to writer Mark Gatiss, David Bradley and everyone else involved.