The Architects of History

The Architects of History is a Big Finish Productions audio drama based on the long-running British science fiction television series "Doctor Who". It contains a four-part story.
The story was broadcast on BBC Radio 4 Extra in 4 episodes on 30 May, 31 May, 1 June and 4 June 2012.
Plot.
In 2044, the Selachians attack Earth’s Moonbase. And the Galactic Reich is threatened.