The British Invasion (audio story)

 was the seventh story of the seventh season of Big Finish Productions' Short Trips series.

Publisher's summary
A huge metal dome sits by the side of the river Thames, within it is a device that might change the entire future of humanity. The Doctor, Zoe and Jamie embark on a small act of kindness but the TARDIS seems oddly unwilling to help. It’s as if it knows the truth. There is something waiting here, something adaptable and cunning, gathering its strength to conquer the stars.

Plot
to be added

Characters

 * Second Doctor
 * Jamie McCrimmon
 * Zoe Heriot
 * Imogen Patten/Vardan vanguard

Continuity

 * The Doctor says they haven't been near the south bank of the Thames since 1668. (AUDIO: The Glorious Revolution)
 * The Seventh Doctor and Ace later visit the Festival of Britain in an alternate timeline. (PROSE: Timewyrm: Exodus)
 * The Doctor mentions being on the Endeavour with Captain Cook. (AUDIO: The Transit of Venus)
 * Jamie recalls visiting a museum in the future. (TV: The Dominators)
 * The Doctor and Zoe discuss interfering in her history. (TV: The Aztecs)
 * The Doctor mentions first encountering the Vardans and defeating them. (AUDIO: The First Wave) This is also the second time he's encountered a Vardan trying to pull itself together. (AUDIO: The Locked Room)
 * The Vardan takes over Imogen's body. (PROSE: No Future)
 * The Doctor mentions the Wheel. (TV: The Wheel in Space)
 * The Doctor explains that Vardans like to join forces with other races. (TV: The Invasion of Time, PROSE: No Future)
 * The Doctor sets a trap without telling his companions, in case their minds are read. (