Doctor.who.2005.s00e161.the.power.of.the.doctor... 90%

True to its status as a centenary special, the episode is packed with :

: In a psychic liminal space, the Thirteenth Doctor meets versions of her former selves, including the First, Fifth, Sixth, Seventh, and Eighth Doctors . Doctor.Who.2005.S00E161.The.Power.of.the.Doctor...

: In a first for the series, the Doctor regenerates back into a familiar face— David Tennant , returning as the Fourteenth Doctor —setting the stage for the 60th-anniversary specials. True to its status as a centenary special,

The story sees the Thirteenth Doctor and her companion (Mandip Gill) facing an unprecedented alliance between the Master (Sacha Dhawan), the Daleks , and the Cybermen . : Disguised as Rasputin in 1916 Russia ,

: Disguised as Rasputin in 1916 Russia , the Master seeks to erase the Doctor from history by forcing her to regenerate into himself.

: Fans highlight Sacha Dhawan's "Disco Master" sequence, dancing to Boney M's "Rasputin," as a standout, darkly comedic highlight of the era. A Celebration of the Past

: While the Master manipulates the Doctor’s timeline, the Daleks attempt to trigger volcanic eruptions across Earth, and a Cyberman-controlled planet threatens the globe.