Strax Field Report: The Doctor's Greatest Secret was the fourth Strax Field Report webcast. It was released following the airing of the final episode of the seventh series of Doctor Who and leads into the show's 50th anniversary special. Of the Field Reports released to date, it is the only one to talk about an episode after it had been broadcast.
Synopsis
Field Report D895/O: "The Doctor's greatest secret has been revealed! And it has nothing to do with his chin."
Plot
After the events of The Name of the Doctor, Strax reports to Sontar that "the Doctor has kept one of his many faces from view," and shows an image of the new face. He describes this face as having "the look of a battle hardened warrior."