Series 1 Episode 5: World War Three

Summary:
The Slitheen have killed all the alien experts but the weren't able to kill the Doctor. Now he is on the run from them, as well as Rose and Harriet Jones. Soon they find together again and lock themselves into the cabinet room, which is build like a panic room with steel doors and walls. From there they try to find out what the Slitheen want but the Doctor needs Mickey's help for that. Mickey has saved Jackie from one of the Slitheens but it followed them back to Mickey's flat. It will kill them if the Doctor can't find a way to save them, which he luckily does. Now they know that the Slitheen send a signal into space because they first want to destroy earth and then sell it piece by piece. Can the Doctor stop them?

In the second part of this two-parter we see that the Slitheen can't kill the Doctor but they have him in a trap in the cabinet room. The Doctor doesn't really know what they are up to and it is fun to watch him when he tries to find an answer to how to kill them when Jackie and Mickey are in danger. You can see that he doesn't like Rose's mother or boyfriend very much but he kind of starts to tolerate them in this episode, especially because he needs their help. We also see, that he doesn't want to put Rose in danger but that he has to when he wants to save the world. I think it's funny that after everything is over the public doesn't believe that the blown up Downing Street 10 has something to do with aliens. People always deny what they can't understand.
The chemistry between the characters is brilliant in this episode and I really like the energy Christopher Eccleston brings into his Doctor. I think the Slitheen are also some of my favourite aliens in the show.