One week from today Doctor Who fans will say farewell to Matt Smith's Eleventh Doctor as he hands over the reins to Peter Capaldi in 'The Time of the Doctor', and to build excitement for the monumental occasion, BBC America has debuted an extended trailer for the Christmas Special, which you can check out below....Orbiting a quiet backwater planet, the massed forces of the universe’s deadliest species gather, drawn to a mysterious message that echoes out to the stars - and amongst them, the Doctor. Rescuing Clara from a family Christmas dinner, the Time Lord and his best friend must learn what this enigmatic signal means for his own fate and that of the universe.
'The Time of the Doctor' airs on BBC One and BBC America on Christmas Day.