Prequel pre-dating Doctor Who's "Last Xmas" Episode 2014. This Salem Xmas special is set only days before Doctor Who "Last Xmas" Salem & her own time traveling team arrive in Northampton for annual Xmas holidays. Set: December 2014. The strange events then immediately begin to escalate. The menacing Grim Reaper & Jack Frost hatch an sinister masterplan to wipe out Salem by taking Santa Claws hostage. Donna immediately realises that Santa has yet to be invented back in the ancient past and then time travels back to Turkey 350AD To invent St.Nick into Santa Claws Existence. But something very...