The End Of Time Part Two - 2010 New Year Special

[The Doctor]

The Doctor faces the end of his life as the Master's plans hurtle out of control. With the sound of the drums in the Master's head growing louder, and an ancient trap closing around the Earth, the Doctor and Wilf must fight alone. But sacrifices must be made, and the deadly prophecy warns: "He will knock four times."

Discuss David Tennant's Finale here!