The Airzone Solution takes place in a future Britain where pollution has reached a point where the populace must often wear filtration masks when they venture outside. AirZone, a powerful corporation, signs a lucrative deal with the government to deal with the problem. The public is told that AirZone plans to build giant filtration plants to clean the atmosphere, but environmentalists are skeptical, especially when people begin dying and disappearing around AirZone facilities.

"Friday, 9th August 1963 Cast and crew members prepare for the recording of a new BBC TV series..." In a corridor outside of Studio D, a reporter asks a script writer how he sees his new programme, "Doc' True", which he describes as "like nothing you've ever seen before", only to be interrupted by an actor dressed as a medical doctor describing it as a "British Doctor Kildare, only much more real". He is then interrupted himself by an actor dressed as a caveman. When the writer takes the 'doctor' aside, the reporter then bumps into someone looking for the designer, before heading over to "Verity Lamberth" and "Sydney Newbaum", who explains there will be no "bug-eyed monsters" in the show, as someone wheels a Dalek between them.

Wearied by his travels through time and space The Stranger has rejected his long-time companion and is in self-imposed exile on a barren planet. Can he ignore the pleas for help from the locals who are tormented by The Conjuror?