This week’s episode of Doctor Who, titled The Legend of Ruby Sunday, sees a dark and mysterious return. Susan Twist reprises her role, playing the chilling character Penny Pepper-Bean, sending shivers down the spines of devoted fans.
As the TARDIS skids into UNIT headquarters, the Doctor and Ruby find themselves teaming up with familiar faces, including Kate Lethbridge-Stewart, Rose Noble, an upgraded Vlinx, and Colonel Ibrahim.
Harriet Arbinger introduces herself as the head of UNIT’s archive while the child genius Morris Gibbons takes on the role of scientific adviser. The Doctor seeks help from UNIT to investigate Sue Triad, an IT genius whose name is oddly reminiscent of both TARDIS and his granddaughter Susan.
While the human DNA samples collected by Mel indicate nothing alien about Sue Triad, S Triad Technology—the creation that has gone worldwide—piques interest due to its controversial nature.
Meanwhile, Harriet points out the VHS tape related to Ruby’s birth mother. Analyzing Ruby’s tape with a Time Window, the episode reveals some shocking footage that intensifies the mystery further.
Mystery Heightens at UNIT HQ
The Time Window powers up unexpectedly, showing a swirling black cloud filled with red lights. Morris describes it as something beyond known science—it’s hot, cold, radioactive, and dead all at once.
A sinister voice interrupts Susan Triad’s speech as red eyes and a mask-like face transform her into a menacing figure. Harriet’s monologue suggests someone has hidden within the howling void of the TARDIS.
The Return of Sutekh
The moment culminates when it becomes clear that S Triad stands for Sutekh—a classic Doctor Who villain from 1975. Gabriel Woolf reprises his role as Sutekh’s voice, unveiling deep connections between Egyptian mythology and alien wars.
This episode leaves fans with many questions about how Sutekh returned and what his connection might be to Sue Triad. Meanwhile, Ruby reflects on her origins as she stares at her birth mother once more through the Time Window. Harriet hints at an ominous legend tied to Sutekh, promising more revelations and intense moments in upcoming episodes.
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