Old Companions Sarah Jane Smith and Jo Grant meet for the first time to discover the truth when the Doctor is declared dead. An interstellar conspiracy gathers around UNIT Head Quarters as Clyde finds that he holds the fate of the Time Lord in his hand.

Old friends fight together - but is it too late to stop the sinister Shansheeth?

In a new video scripted by Russell T Davies and narrated by Jacob Dudman, released to coincide with the anniversary of Elisabeth Sladen's passing, Sarah Jane Smith's closest friends come together to say "Farewell, Sarah Jane." Billed as the final Sarah Jane Adventure, it confirmed the in-universe death of Sarah Jane Smith at some point into the 21st century.

Produced during the COVID-19 Lockdown, this episode was hybrid in its format: while most of the story was read aloud by the narrator filmed in his recording booth, some scenes were fully realized with the clips edited into the narrative.