Mickey, who we last saw in “Rise Of The Cybermen/The Age Of Steel”, returns as an all-out warrior with a mission to the stop the Cybermen from taking over the first earth. Along for the ride is Jake, his assistant and friend, and Pete Tyler, the alternate copy of Jackie’s dead husband. It appears they have seized the building of Torchwood in their version of earth in order to use the technology to reach the original one. With this ability, The Doctor decides to send Rose with her family (plus alternate Pete) back into the other Earth while he fends off the Cybermen and the Daleks by himself. That is, until Rose returns from the other earth suddenly to help The Doctor.
(Warning: Ending Spoilers Ahead)
Rose being stuck in the alternate earth didn’t seem like a satisfactory ending for her. I wanted her to actually die, or get sucked into the void with the Cybermen and the Daleks. That would have left David Tennant’s Doctor speechless in the way that he was at the end of “The Girl In The Fireplace.” I know it will be a more fleshed-out ending for a companion than the show’s past would ever allow, but there’s something cool about The Doctor being so short with people. It’s easy to be taken in by The Doctor’s lifestyle, but if he feels you are in the way too much, he can dump you when he likes.
The family of Rose Tyler has somewhat improved since their inception in Series One. Jackie Tyler is not a loudmouth, Mickey isn’t such an idiot, and Pete Tyler has come full circle. Rather than have “Fear Her” before this two-parter, it would have made sense to re-introduce them before so that you can farm out all the touchy-feely moments that would have gotten in the way of the Cybermen/Daleks war.
As far as romances go, I wouldn’t have been able to stomach The Doctor in a relationship continuously. If the show ever had a final episode, that would have been the perfect time to do that (or the final season). “The Impossible Planet/The Satan Pit” made it clear that they had no chemistry as a couple, and really seemed to work better as friends. If the producers and Russell Davies were going to include romance, Sarah Jane Smith would have been the route to go considering she was more his type. Sadly, the age difference of Elizabeth Sladen and David Tennant would have creeped viewers out.