The Doctor gets every ally he can find to stop Davros and the Daleks.
So, the Earth was stolen…
Donna sees how much a single left turn could have changed everything.
The Doctor is trapped with a lot of scared people on a stranded sightseeing train.
The Doctor and River Song continue to evade killer shadows as they work to solve the riddle of the Library.
Killer shadows stalk through a giant library, chasing the Doctor, Donna, and a mysterious woman who seems to know the Doctor very well.
The Doctor, Donna, and Agatha Christie solve a murder together involving a giant wasp.
The Doctor and his crew land on a wartorn planet where a cloning machine produces a daughter for the Doctor.
The Doctor races to stop the Sontarans from poisoning the entire Earth and UNIT from starting a galactic war.
Martha, now working for UNIT, gets the Doctor’s help to look into a mysterious car exhaust system that seems to kill people.