A musical odyssey through time and space with highlights and background footage from the Doctor Who - A Celebration concert at the Wales Millennium Centre in November 2006. Hosted by David Tennant, artists include the BBC National Orchestra and Chorus of Wales under the baton of Ben Foster, Oods, Daleks and Cybermen. The programme has insights into the musical soundtrack from composer Murray Gold, Doctor Who head writer Russell T Davies and executive producer Julie Gardner.