Many incarnations of the Doctors and their old companions are taken out of time and deposited in the Death Zone on Gallifrey. There, they must battle the Master, Daleks, Cybermen and Yeti in order to reach the Dark Tower and discover the Tomb of Rassilon.
This documentary looks at the work of Uxbridge-based Shawcraft Models, who provided many of the props and models for Doctor Who during the 1960s.
