Doctor Who Confidential - Series 4 - Sontar-Ha!

Behind-the-scenes look at the making of Doctor Who. The Sontarans are back and, with their invasion plans threatening the Earth, the Doctor is forced to face his enemy one more time. Features in-depth interviews with David Tennant, Colin Baker and Elisabeth Sladen on their experiences with the Sontarans, and Chris Ryan on life behind the prosthetics and playing General Stahl.