The TARDIS winds up in the near future Earth that is strangely deserted. There's a good reason why as a Dalek emerges from the Thames and our four heroes are quickly separated and forced to find their way back while also discovering there's more to the Daleks' invasion of Earth than mere conquest.
John loves this story very much and really could have taken more time than he did in this encapsulated review to talk about all the merits of it. From Barbara and her encounter with the Daleks in her truck to Doctor getting into a scrap in the sewers to Susan's budding romance. Yes, he goes there and he likes it, for the most part. Take a listen and see if you agree with his reasons.