Since the birth of Doctor Who in the 1960s, it has shared an almost symbiotic relationship with the long-running BBC children's magazine show Blue Peter. In this special documentary, some of those involved look back over the history of that relationship. Presented by Gethin Jones, with new series executive producer Russell T Davies, Blue Peter editors Biddy Baxter and Richard Marson, former presenters Peter Purves and Janet Ellis, writers Robert Shearman and Clayton Hickman, and competition winner Steve Thompson.