Not sure why I even need to say this, but spoilers, lots of them, stupid amounts of details. Here we go again.
This episode starts with Clara having some sort of dream in the Zygon pod where she can see Bonnie shooting at the Doctor’s plane. She tries to throw off the aim but the plane is hit and blows up.
Next we see Bonnie touch a man in the temple and his arm starts to look like a Zygon’s. Then he completely turns, asks people for help and runs. Meanwhile, Bonnie records it all. She then calls someone, said she changed the first one and is going to UNIT to retrieve the Osgood Box.
Clara replays the explosion and sees there were survivors. Flash to Osgood and the Doctor. Pointless scene to show they’re alive. However, Clara has learned she has a little control over Bonnie’s body, enough to send the Doctor a quick text to say she’s awake in there. And there are little things, like Bonnie walking by a mirror and Clara being reflected back. She’s trying to take over. But meanwhile Bonnie is looking for the Osgood Box.
The Doctor calls Bonnie and asks some questions of Clara, which she blinked the answers to. This prompts Bonnie to visit Clara to try and probe her mind about the Osgood Box. It really just gives Clara a chance to poke around some. Clara is able to make Bonnie lose her shape. Apparently because they are linked, they can’t lie to each other due to increases in things like pulse. Bonnie thinks this will get her the information she wants. So she starts asking questions about the location, and Clara tells her. She also tells her how to access it and that the box contains a button that will unmask all Zygons for up to an hour. That would cause mass panic and a war… Exactly what Bonnie wants.
The Doctor and Osgood find the Zygon that was forced to changed. He’s terrified, doesn’t want a fight and just wants to live in peace. Then he kills himself. Moments later, “Kate” appears with a couple of Zygons wrapped up as UNIT. The Doctor plays along.
Bonnie takes Clara’s pod with her to the Black Archives to grab the Osgood Box. When she arrives, she finds 2 boxes, a blue one and a red one. On a phone call to the Doctor, he says that one box normalizes all the Zygons while the other destroys them. Bonnie opens Clara’s pod and removes her to use as a hostage. So the Doctor says it’s the blue box that normalizes. But there’s 2 buttons inside. One says “Truth”, the other “Consequences”. So she opens the red box and sees the same setup. Bonnie demands they bring the Doctor to her. When the Zygons advance, Kate shoots them both. Turns out, Kate is actually Kate. She’d shot the imposter in New Mexico to escape.
Now for the chat. The Doctor reveals that the red box contains the nerve gas, which will turn the Zygons inside out. The blue one will turn them to their true form. Two boxes, one to protect each side. Two Osgoods, to police and protect the ceasefire. Kate had agreed to that and to having her memory wiped of the knowledge of it, so that’s what the Doctor had done.
For now, the Doctors group joins Clara and Bonnie’s group. Kate stands at the red box, Bonnie the blue. The Doctor tells Kate that one of her buttons releases the nerve gas while the other detonates the nuclear warhead under the black archives. If you didn’t care about survival you could just push them at the same time, right? He tells Bonnie that one of her buttons will unmask the Zygons while the other will “lock” them in the form they’re in, making it so they’re in human form forever.
On a side note, I’m really loving that shade of Bonnie’s lipstick 🙂
So the Doctor finally asks Bonnie what she actually wants, and the answer is war. So there’s a lot of talking, about how war is bad basically, but we get some insight that the Doctor has done some very terrible things (for those who didn’t know) and that it haunts him. Kate closes her box, while Bonnie realizes that both boxes are empty with a couple buttons that don’t do anything. They say they can’t just forget the boxes are empty, but the Doctor informs them that they’ve said that the last 15 times… and then he wipes their memories. Well, everyone’s but Bonnie’s. She has to live with it so she doesn’t repeat her mistake.
We do a little wrap up and then the Doctor asks Osgood if she’d like to go in the TARDIS. She turns him down and a second Osgood shows up. Two were needed. It seems like we kept the human one all along, assuming there’s still one human and one Zygon. The second is Bonnie, now filling the empty space. All is safe again.
It seems our Doctor is too attached to Clara. I suspect the worst…