This episode is definitely a step down from the first part of this story. Eccleston, Piper, Clarke, Coduri, and Wilton are the biggest saving graces, delivering excellent performances in an an otherwise iffy episode. The ending is one of my biggest issues with this story, with 10 Downing Street literally being blown up, something which seemingly has little effect on Britain and the world. I do enjoy what this episode does to set up Harriet Jones, as she's a personal favorite side character of mine. Overall, a decent ending to our first alien invasion story of the revival.