Simon Pegg narrates a behind-the-scenes look at Doctor Who, following the production team, writers and cast as they bring the Time Lord back to the screen. A look at the long line of feisty, sexy, screaming sidekicks who have joined hands with the Doctor for his intergalactic globe trotting.

After The Doctor saves the Earth once more in the fifth episode, World War Three, this episode of Doctor Who Confidential looks at some of the history of the Doctor's special interest in our planet.

Following on from an episode, Boom Town, that deals mainly with death and justice, the Confidential team looks at the importance of death to Doctor Who and at the Doctor's moral code.

Behind the scenes of "New Earth".

David Tennant is interviewed during his first few days playing the new Doctor. The process of regeneration is closely examined, as we learn all about the Doctor's regeneration at the end of The Parting of the Ways, follow him as he chooses his new outfit in The Christmas Invasion, then join the Doctor and Rose on their first adventure together on New Earth.

Behind the scenes of "School Reunion".

As well as going behind the scenes on School Reunion, this episode examines why former companions have decided to leave the TARDIS in the past, with interviews from the actors who played them. Also, the actors discuss what they think that their characters would be doing now, after leaving the Doctor and the TARDIS.

Behind the scenes of "Rise of the Cybermen (1)".

This episode examines the history of the dreaded Cybermen, with memorable clips from the original series, and looks at the design process that brought the new-look Cybermen to our screens in the episode Rise of the Cybermen.

Behind the scenes of "The Age of Steel (2)".

A look at the journey Mickey Smith has taken over the past two series. Featuring key backstage scenes in his final episode, actor Noel Clarke provides an insight to life on set and beyond…

Behind the scenes of "Army of Ghosts (1)".

In a break from the normal programming, this episode takes a look behind the scenes of next year's spin-off series Torchwood.

Behind the scenes of "Doomsday (2)".

This episode takes a look back at the second series of Doctor Who and goes behind the scenes of the epic season finale.