Critic Consensus: While "The Zygon Inversion" isn't the most compelling conclusion to a Doctor Who two-parter, it allows for a stirring performance by Capaldi while hinting at Clara's fate in the episodes to come.
The Zygon Inversion Photos
Critic reviews for The Zygon Inversion
On the basis of "The Zygon Inversion," I'm now ready to call it: Series 9 is the best season of Doctor Who yet. Hands down.
Today, the four principal characters all get a good chunk of the action, each showing a side of themselves we're not used to.
Capaldi can make the most writerly lines sound natural, a talent upon which this episode made great demand.
'Inversion' grows bleak as it strains to make its point, but it should be forgiven that. Because ultimately this is smart, powerful science fiction - a television drama that educates and entertains.
I feel like we have finally met Peter Capaldi's Doctor for the first time. At last.
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