Doctor Who Confidential

The End of an Era (4x13)

Air date: Jul 05, 2008

It's the end of series four and Confidential goes behind the scenes as we see the Doctor's Arch Enemy bring the universe to the brink of extinction. Featuring interviews with David Tennant, Billie Piper, Catherine Tate, Freema Agyeman, Russell T Davies, Julie Gardner and Phil Collinson.