Episode Name: Planet of the Dead
Air date: 4/11/2009
Summary: The first of four specials to mark the departure of David Tennant. Location: Earth & Planet San Helios; Date: Unknown; Enemies: The Swarm; Plot: The Doctor finds himself taking a bus ride that leads him and everyone else into serious danger. Along with the mysterious Lady Christina de Souza, can The Doctor escape the desolate wasteland on which they’re trapped on and stop the mysterious, deadly force looming on the horizon?
Watch or download Doctor Who (2005) – Season 4 Episode 15 – Planet of the Dead at below links.