The Boy Who Santa Clause Forgot

Cast:
The Doctor
Georgia
Zac
Kaylie
Elizabeth
Colin
Rob Slater
PC Walsh
DI Blakely
Mathew Core
Teresa
Jane
Steve
Karen
Beth
Catherine
The Cybermen

Georgia and the Doctor return to South London after dropping Zac, Kaylie, Beth and Catherine off in Portsmouth, to find that it's Christmas Eve. A distress signal has brought them here. The Cybermen are back, but they look different, as they have a new copying creator. Who is Rob Slater? What does MC stand for? Who is Teresa working for? One things for sure, this is a christmas they won't forget!

Spoilers! Remember two are red herrings!

Beth and Catherine don't remember much
Rob Slater does his rounds...
Slade make an appearance
The police force are in on the action!
The snow is rubble from the Spidership
A cyberman turns into Santa
Someone has the Doctor's psychic paper