The adventures of The Doctor on BBC television have not always been renowned for the perfection of their visual effects, however, Doctor Who Confidential looks at how modern technology can now give us effective shots of Rose floating over 1941 London during the Blitz while hanging from a barrage balloon.

The plot device of nanogenes in the episode The Doctor Dances points up the role of futuristic science concepts in Doctor Who. This episode examines some of these concepts.

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 "Tooth and Claw".

On the back of Tooth and Claw, this episode examines just how scary Doctor Who can be. The episode looks at how state-of-the-art CGI is used to create some of the Doctor's scariest enemies, and revists his bone-chilling fight with the Sycorax leader in The Christmas Invasion.

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.