Doctor Who: Every Doctor's WORST Episode
3. The Battle Of Ranskoor Av-Kolos (The Thirteenth Doctor)
When pitching his Doctor Who revival in 2003, Russell T Davies famously said that he couldn't "give a toss" about the people of Planet Zog. What he meant is that it would be difficult to get audiences to care about random goings-on on random alien worlds, without sufficient heart, depth, and character drama.
15 years later, Chris Chibnall delivered a story that asked us to do just that.
The Battle of Ranskoor Av-Kolos is like the most tedious episode of Star Trek: The Next Generation you've ever seen. An alien masquerading as a god, tricking some alien holy people into doing their bidding. The alien holy people are very boring indeed, the planet itself is the greyest of grey quarries, and while she tries her best, Jodie Whittaker can't raise this from being Doctor Who by numbers.
There's a reason for that too. Chris Chibnall later admitted that the finale was a first draft, rushed into production due to delays elsewhere. It shows, particularly in the climax where Tim Shaw targets Earth and we don't jump back to see Yaz's family in danger. Or anyone in danger, for that matter.
It's an outline for a decent Doctor Who story, but it's in dire need of proper fleshing out.