Maria and her father must make a big decision while Sarah Jane and the boys investigate an incident at an observatory.
So, the Earth was stolen…
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.
After a bomb blast, the team flashes back to how they all joined Torchwood in the first place.
The team brings in a former associate of Jack’s to look into a medical mystery.
The Doctor and the Master have a final showdown…again.
The Master’s new job creates a series of problems an order of magnitude higher for the Doctor than usual…
Tosh starts a relationship with a woman who may be a bit more demanding than she initially seems.
A new Doctor, a new threat, and festive holiday…what can go wrong?