All episodes Season 18 S18E21 1981-01-31 25 min 1960s BBC

Doctor Who

The Keeper of Traken, Part One

TV Flash files “The Keeper of Traken, Part One” as hour 552 of 700 in the TV Flash guide — Doctor Who (1963–) on BBC, season 18, episode 21, aired 1981-01-31, 25 min.

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How this hour is filed

This leaf is S18E21: listed hour 552 of 700 in the Doctor Who guide, hour 21 of 28 in season 18. It aired 1981-01-31 (25 min). The listed hour before it is “Warriors' Gate, Part Four” (S18E20). Next is “The Keeper of Traken, Part Two” (S18E22). Broadcast log — titles and dates, not a plot bible.

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Catalog log

Broadcast listing — not a TV Flash recap.

Returning to N-Space, The Doctor and Adric are summoned to Traken, a planet of peace and harmony. The Keeper of Traken is nearing the end of his 1000-year-old reign and one of the Traken consuls is to become the next Keeper. The Doctor, Adric, Tremas (the Keeper Nominate) and Nyssa (his daughter) set about to stop the Melkur, a calcified figure believed to be a "Source of Evil" trying to destroy the Traken Union, only to later discover it is the guise of a old enemy of the Doctor - The Master - who plans to take control of The Source (the keystone of Union) so he can regenerate into a new body.

Viewer FAQ

Where does The Keeper of Traken, Part One sit in the Doctor Who guide?

S18E21 is listed hour 552 of 700 — hour 21 of 28 in season 18, season 18 episode 21.

When did Doctor Who S18E21 air?

The Keeper of Traken, Part One aired 1981-01-31 and is listed at 25 minutes.

Where should I start with the 1960s serials?

William Hartnell's First Doctor is the origin of the TARDIS-and-companions contract. Patrick Troughton's Second Doctor is the proof that regeneration works. Start at a serial whose surviving episodes interest you; missing-episode gaps are part of the classic-era weather.

In the series

Why this series still plays

A Time Lord, a police box bigger on the inside, and regeneration as infinite franchise life: Doctor Who launched from the BBC in 1963 and never really parked. Early black-and-white serials built the mythology; Hartnell-to-Troughton proved the lead could change without ending the show. The longest experiment in serialized reinvention — woolly, weird, endlessly renewable.

November 23, 1963, is a drop that never really parked. BBC's *Doctor Who* launched a Time Lord and a blue police box bigger on the inside, then treated the lead as renewable inventory. **Regeneration is the window.** Sydney Newman, C. E. Webber, and Donald Wilson were among the early architects. Early black-and-white serials built the mythology; companions, sonic screwdrivers, and cliffhangers became ritual. Rex wants woolly national inheritance. Fine. The business model is recasting without ending the show.

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