Therefore, its known narrative elements are not a part of the Doctor Who universe as we, on this Wiki, choose to define it. It may have been the basis for a similar story in another medium, however — and that story may indeed be valid.
It would feature the Fourth Doctor saving Earth from a corporation that wished to buy it to receive a matter-transmutation device. Lloyd was asked to rewrite the script a few times. He eventually gave up to work on Not the Nine O'Clock News. Douglas Adams, with Lloyd's permission, allowed Allan Prior to rewrite it, but his script was rejected. Adams gave the project to another author to be part of season 18, but Adams soon left the series and the serial was ultimately cancelled.