In 2008, Courtney again reprised the role in a "The Sarah Jane Adventures" story, "Enemy of the Bane", and confirmed his knighthood repeatedly: Major Kilburne and Sarah Jane each address him as "Sir Alistair" and he later introduces himself fully as "Brigadier Sir Alistair Gordon Lethbridge-Stewart" to Mrs. Wormwood. This episode refers back to the Peru mission as there is mention of him being de-briefed about it. Sarah Jane asks Lethbridge-Stewart to assist her in accessing UNIT's "Black Archive", a top secret alien artefact facility first alluded to by Douglas Cavendish to Sir Alistair's daughter in "Dæmos Rising". Sarah Jane prefers to avoid seeking official clearance, to avoid awkward questions about Luke, her artificially-grown son. In his old age, the Brigadier has developed a dislike for the new way UNIT works and often refers to events that happened in "his day". He walks with a walking stick now, but is seen driving a Bentley T-series to UNIT's "Black Archive". His wife (presumably Doris) is mentioned in this episode. The Brigadier assists Sarah Jane and Rani in escaping UNIT and later confronts a Bane disguised as a UNIT officer, shooting him dead with a gun hidden within his cane.