Death of the Doctor is a two-part story of The Sarah Jane Adventures which was broadcast on CBBC on 25 and 26 October 2010. It is the third story of the fourth series. This episode features the return of Katy Manning to the role of Jo Grant and a guest appearance by Matt Smith as the Eleventh Doctor. Exposition at the end of the episode provides updates on the lives of numerous companions from the "classic era" who had gone unaddressed in the revived era. This story was the last to feature Sarah Jane Smith and the Doctor together onscreen.