It is the first professionally produced, authorized independent spin-off of the British television series Doctor Who, and the only such production to be made while the original run of the show was still on the air.

Produced and directed by Keith Barnfather and written by Andy Lane and Helen Stirling, Wartime follows Warrant Officer John Benton of the United Nations Intelligence Taskforce.

During a mission for UNIT leader Brigadier Alistair Lethbridge-Stewart, Benton visits his childhood home where ghosts of the past rise up to haunt him.

Later, having failed to contact UNIT successfully, Benton senses that there is potential trouble lurking nearby and orders his driver, Private Willis of the Regular Army, to repair the Land Rover while he himself investigates.

Furthermore, it was used in a few novels which were produced by the BBC, for example in David A. McIntee's The Face of the Enemy, Paul Leonard's Genocide, Paul Cornell's No Future, Gary Russell's The Scales of Injustice, Keith Topping's The King of Terror, Tommy Donbavand's Shroud of Sorrow, Christopher Bulis' The Eye of the Giant, Mark Morris' Deep Blue or Simon Guerrier's Time Signature.