Cyberman invade a train though just where that futuristic train came from or where it was headed just appeared as a random plot point. As the guards try to gun them down, they regenerate and are now "Cybermenmasters." Obviously a big hint as to who had that influence on them. The Doctor (Jodie Whittaker) tries to help with Yaz (Mandip Gil) and Dan (John Bishop) who clings on for dear life after he almost zooms into space on that ladder. She helps the people and fails to rescue a child they transport off the train. Dan prepares for his date and as he's dropped off the TARDIS he says this is his last time on here. He was lucky to escape with his life and the Doctor helped him put his life back together. He wants to live it now and is ready for it. His house is gone obviously so he's going to stay with his parents. As Yaz says goodbye to him.
We get to see Ace (Sophie Aldred) and she gets a call from Tegan (Janet Fielding) telling her the Doctor's sent her a note and a mini-Russian doll figure. Which doesn't resemble a Russian doll at all. This is after Ace looks at the wall of the museum where a missing painting was hanging. Gone for maintenance is what the assistant says. Of course she knows there's more going on. As well as there being fifteen missing seismologists. Of course as everyone has said that would become topical with all that soup throwing and crap over paintings in museums. Well the less said about that the better. Here we see paintings like The Scream, Girl with a Pearl Earring, with the Master's face as Rasputin plastered all over it! The Girl With the Pearl Earring was a veritable masterpiece here! Ha.
The Doctor chasing after the Cybermasters finds a planet: a cyber converted planet. Where we saw a long haired figure being taken to the Tsarina at the Summer Palace in St Petersburg. Him being Rasputin aka The Master (Sacha Dhawan). Here on the planet she finds the Master's TARDIS ready to take the planet through time and space. She finds it's hooked up to some energy form known as the Quoronx. To which the child was chained. She has to return to the TARDIS when the Cybermasters turn up. The Doctor is then disturbed by a Dalek hologram, a Dalek betraying his own kind by telling her they plan on destroying the human race again and to meet somewhere for details on this. Kate (Jemma Redgrave) also asks for help. Where the Doctor is reunited with Tegan and Ace. Tegan perturbed the Doctor didn't keep in touch and Ace having a falling out with her version. Tegan having brought the mini-Russian doll with her.
That's when they see the new images plastered all over the paintings. The Master trying to be clever and catches the Doctor's attention. As well as appearing at some seismology conference in Naples which is where she heads. Here he's shrunk the audience again and he's arrested and taken back in the TARDIS to UNIT HQ. Telling Yaz to keep a gun on him. She likes the new HQ. Then in conversation with Tegan and Ace, she places her hand on their shoulders and shocks them with a static charge. She's off on the trail of the Daleks next and in true Thirteen fashion, we jump around from place to place where the action is happening practically all over the world.
The Master has plans to escape obviously and getting caught and coming away with them was too easily orchestrated. The little mini-doll is now regenerated as his shrinking process can be reversed and transforms into a Cyberman. Ashad (Patrick O'Kane) and of course he's a Russian doll so soon enough there's a whole building full of Cybermen. He releases the Master and shows no mercy in taking out the soldiers. Letting the Master escape. The Doctor and Yaz find out the Dalek's plan in Bolivia: to erupt all the volcanoes on Earth. She gets to see the Dalek in person but it's caught by the others who already knew of its betrayal. As they exterminate it and get the Doctor to sit in its shell; she signals to Yaz to go. She takes the TARDIS and lands back on the planet where she rescues Vinder (Jacob Anderson).
The Doctor is taken to St Petersburg where we see Rasputin Master and he wants to force a regeneration of the Doctor harnessing the energy of the planet. But not before he does a dance rendition to Boney M's Rasputin. With a harkback to the timely warning in Flux. He transforms, regenerates into the Doctor, earring in all. When did she get that then. Yaz has to accompany him as he too wants a companion, dressed in the Doctor's clothes. As he wants to ruin the Doctor's reputation everywhere. But Yaz leaves him and flies away. Getting out the Post Its from the book and placing them on the controls of the TARDIS on how to fly it. She was taking notes then was she.
The Doctor gets to see her past selves, well not all, just One (David Bradley) Five (Peter Davison) Six (Colin Baker) Seven (Sylvester McCoy) Eight (Paul McGann). Each one wearing a robe but Eight being an individual consciousness doesn't want to dress like that. Telling her they're "at the edge..." The Doctor appears as a hologram to Yaz and talks of how if she can see this it means she's no longer alive. That's what the static shock was for as she implanted into them all. Kate says she can level the building from the inside and Tegan and Ace need to leave by flying off the roof. Tegan refuses to leave as it's her fault they're here. Kate sends her to the basement to unplug the wires in the electrical interface as she'll act as a distraction. Telling Ashad she has knowledge of everything. He takes her to be converted and the Doctor appears to Tegan. Finally being able to unplug the wires Kate is saved from her fate.
Yaz along with Vinder take the Master back to St Petersburg and wants him to reverse the regeneration. This he is tricked into doing as the Fugitive Doctor (Jo Martin) turns up and get him into the chamber where the Cybermaster's regenerative energy is transferred into the chamber and the Doctor returns. The Daleks set their plan in motion and volcanoes erupt. However Ace is on the case, as is Graham (Bradley Walsh). How did he turn up and why he was there isn't really mentioned. So he's still going round doing what he did with the Doctor. Not explained at all. Allowing Ace to set her bombs and destroy the Daleks. The Doctor moves the cyberplanet to 2022 using the companions on each of the TARDIS consoles (as in Journey's End) and uses the cybermaster's metal to plug the lava flow. As she repairs Vinder's ship and lets him fly home through the wormhole before it vanishes.
Now freeing the Quornox energy the Master arrives to zap her with it thus sending her into another regeneration. Yaz carries her back. She eventually wakes and Yaz has dropped everyone off in Croydon. As she begins ere regeneration, the Doctor asks if Yaz wants to go somewhere and have an ice cream, watching Earth with ice cream. The best view where they have an emotional talk. As the Doctor goes to regenerate alone and drops Yaz off back home. She sees Graham and Dan with a map looking for a place. Here it was Graham's idea to set up a group for companions to share their stories since no one else will believe them. Attended by Kate, Tegan, Ace, Melanie Bush (Bonnie Langford) Jo Grant/Jones (Katy Manning) Ian Chesterton (William Russell).
The centenary episode proved to be good in some aspects and very familiar in other ways. But not in other ways as The Doctor had less to do this ep and being so easily carted off and captured by the Daleks, the Master. Not much of her quipping or Sonic use for the last time. The last time we see Jodi as the Doctor and we don't get to see her much. She goes off and regenerates like a bright lighthouse and out pops Doctor Ten (David Tennant) who now becomes Doctor Fourteen. Who can't quite believe it's him again. If you watch on BBC iPlayer you don't get to see a clip of the forthcoming adventures cos they cut the end credits and start another show. It was Pointless, all pointless I tell you! Yeah the next show that begins.