The Zygon peace treaty breaks down, along with everyone’s trust.
IfDoctor Whoof all shows cant be optimistic on its 50th anniversary, then when can it be?
(Not Gallifrey.)

Credit: BBC America
Most of the action, naturally, took place in England.
How many of them assumed the identities of the people whose likenesses they shared?
How did this work?
The treaty is breaking down, and Osgood the remaining Osgood is kidnapped after calling the Doctor for help.
Another consequence (half) undone.
But what about the effect the Doctor has had on Clara?
Is that being undone, too?
(Someones been listening to Adele.)
Shes about to return his calls when she sees a boy in her building sitting alone on the stairs.
Of course she knows every kid in her neighborhood; shes Clara.
When the elevator gets to the ground floor, theyre all gone.
Behind the elevators panel of buttons, Clara finds a Zygon interface and touches it, against Jacs advice.
Theyre transported to a system of tunnels, where UNIT finds an underground chamber lined with Zygon pods.
But, as Jac points out, Zygons dont grow duplicates.
They kidnap the originals.
Thats our Clara in the pod, everyone; weve been dealing with a Zygon.
Bonnie confirms that report and fires a missile at his plane.
When Bonnie calls the office, Kate picks up, confirming that UNIT is neutralized in North America.
Im not sure who to trust anymore.
If you dont know the truth of whats happening, how can you understand the reality of the fallout?
So was this episode a commentary on that exact problem, or was it just a symptom of it?
We might find out next week.