Doctor Who: Christopher Eccleston Returning for More Audio Dramas Posted on th Doctor in the second volume of Doctor Who – The Ninth Doctor Adventures from Big Finish Productions. This follows the release this week of the first volume of 3 audio drama adventures. Due for release in August 2021, Respond to All Calls takes the TARDIS's phone panel message literally, as the Ninth Doctor answers cries for help from around the galaxies in a trio of full-cast audio adventures. "Doctor Who: the 9th Doctor Adventures – Respond to All Calls" cover, BBC, Big Finish Prepare to meet the Serapheem, a lighter-than-air alien species, the First and Second Incorporation, representatives of a business-obsessed race from the dawn of time, and an artificial intelligence called Fred. The stories included in the second volume are as follows: