doctor who Series two start off the David tennant year as the doctor . after the ensue battle between the Emporer Dalke and he force of human hybrid Dalkes the Doctor have regenrate to save Rose Tyler 's life . Rose do not know what to make of what have happen to the doctor since she have no idea wh ohe be now . meanwhile the doctor still weak from he regenration manage to land the TARDIS on Earth in the 21st century and make it to christmas no less at Rose 's mother 's place . meanwhile the whole of the United Kingdom be watch as a satellite be be shoot off into space and with it the hope of relay image and information about space . what none of they know be the satellite have be take aboard a ship enroute to Earth . back at the Tyler 's Jackie be try to get a proper christmas eve dinner go and try to calm Rose down who in turn be try to get the doctor to wake up since he get to Earth with no luck . with Mickey in tow they try and go shopping and enjoy themselves only to be chase after by Santa 's with a killer sound . Chisrtmas tree that kill and a alien ship bent on turn the Earth and its people 's into slave . the goverment try to make sense of it include the prime minster Harriet Jones who fear she may have to call upon the Torchwood group . will the Doctor ever wake up ? will Rose ever get use to see the doctor in he new form ? all this plus a encounter with a old freind and she trusty dog . travel between dimesnion and fight a foe bear again . outwit the Devil . the ood , the Face of Boe , Queen Victoria and werewolf , Pete Tyler ! and what do the Torchwood group have to do with all of this and a battle between two of Doctor who be greatest enemei will finally be answer in this doctor who Series two .