Series 3 Episode 3: Gridlock

Summary:
The Doctor decides to grant Martha another trip in the Tardis and so he takes her to New Earth. They arrive in the under city where people sell drugs like "Happy" or "Forget". Martha thinks, that it's a bit strange that the Doctor takes her to the same places to where he took Rose to but she has no time to think about it before she is kidnapped. Two people drag her into their car and take her onto the motorway. The Doctor follows her onto the motorway and can't believe that so many people are there and that for already so many years. Meanwhile, Martha and her two kidnappers are on their way down to the fast lane which is only possible when three people are in a car. They hope to get into a better world when they come to the next exit but when they are on the last lane, something attacks them. The Doctor climbs down to the last lane but when he is there a cat nun takes him to the face of Boe. Can they save the people together?

I like this episode because we see the face of Boe again, which is one of my favourite Doctor Who aliens but it's so sad when he dies in the end because he gives his energy to save the people on the motorway. The whole episode reminds me a bit of "New Earth" when the Doctor visited the planet with Rose and I guess that's a way to connect the second and the third series. It's great that the Doctor and Martha sit together and talk about everything at the end of the episode because that changes something in their relationship. Martha is on a good way to become the new companion and the Doctor starts to notice her as something else than a replacement for Rose. A nice episode with a broad range of aliens and a really unusual setting.