The Night Walkers was a story published in TV Comic featuring the Second Doctor. It is considered to be the conclusion of Season 6B. Published in three parts from 8-22 November1969, it is the last TV Comic story to feature the Second Doctor and the very last adventure of this incarnation, serving, in a sense, as a direct prequel to TV: Spearhead from Space.
The Second Doctor has become a celebrity in the early days of his Time Lord-imposed exile on Earth. He is a panellist on the game show Explain My Mystery. One mystery, a strange case of scarecrows who walk at night, stumps the Doctor. Intrigued, he goes to explore the farmer's land at night. When he does, the scarecrows capture him and reveal they were sent by the Time Lords to begin the second phase of the Doctor's sentence.
Grabbing the Doctor, they head for the TARDIS. Once inside, they force his Regeneration and set the TARDIS controls to dematerialise. They leave the TARDIS to land . . . somewhere else on Earth.
Mrs Swiggings, an elderly woman with a domestic maintenance problem
Notes
Published six weeks before TV: Spearhead from Space began, The Night Walkers is the only published comic strip to depict the actual moment of regeneration for a televised Doctor. Part three, published 22 November1969, not only showed the end of the Second Doctor's life but also brought to a close the "third phase" of Second Doctor comic strips.
Begun in COMIC: Action in Exile, the era had given readers tales of a companion-less Second Doctor enjoying his exile on Earth. Rather than living in UNIT obscurity, as the Third Doctor's televised exile showed, the Second Doctor's comic exile was one of fame and luxury in the Carlton Grange Hotel.
For the purposes of this list, a "regeneration story" is one in which a regeneration is actually and initially depicted. For this reason The War Games is not included below, even though it is commonly thought of as a "regeneration story". It doesn't actually include a clear scene of regeneration, and the preponderance of stories in other media confirms that the Second Doctor did not regenerate at the end of it.
Additionally, immediate post-regeneration stories, like the 2005 Children in Need Special Born Again — and ones like Castrovalva, where the regeneration sequence was replayed — are not included.