This is one of the BBC’s original audio Doctor Who stories, which I only recently discovered and am gradually working through. In this one, released last year, the Seventh Doctor and Ace investigate the mysterious appearance of a plastic processing centre which turns out to be a front for the next Auton invasion. The story is very nicely set up with the viewpoint character a retiree from the local senior citizens’ home, and the concept that the Autons would want to take advantage of the microplastics is a neat update of Auton lore. Terry Molloy is a good reader, with the rather grievous exception that his Scottish accent for the Seventh Doctor is poor. Nothing extraordinary, but solid. You can get House of Plastic here.