Billie Says...

I agree with Paul that this should have been a two-parter, and yes, the instant soldier thing was way improbable, but I still liked Jenny a lot. She *felt* like a very young, very inexperienced, very enthusiastic version of the Doctor. I hope they eventually do bring her back. I also liked the Doctor's reaction to instant parenthood. He simply couldn't adjust that quickly, couldn't find the courage to risk his hearts again. The dynamic between them was quite nice.

Donna was again terrific, encouraging the Doctor to connect with Jenny, almost using her feminine wiles, and figuring out what the numbers meant. (I liked the idea of all the generations taking place in only seven days, no matter how improbable it was. Was it meant to be Biblical, too?) At one point, Donna said to the Doctor, "You talk all the time, but you don't say anything." Donna may have decided she wants to travel with the Doctor forever, but his secretiveness about his past is starting to bother her.

Martha, unfortunately, got the sticky end of the lollipop again, captured by fish people, trooping through the mud, getting caught in the local version of quicksand. Can't blame her for wanting to chuck it all.

Was the terraforming just for the humans? What were the Hath supposed to get out of it? They were cool-looking aliens, by the way. Much too kind to Martha for the bloodthirsty beings they were supposed to be, what with sacrificing themselves for her and all.