In "The Juggernauts", Davros is on the run from the original Daleks. He hatches a plan to add human tissue to robotic Mechanoids, using them, along with his own Daleks, to destroy the originals, but the Doctor learns the truth about this plan, and his companion Mel Bush- who unwittingly assisted in the programming of the new Mechanoids- uses a backdoor she installed in their programming to turn them against Davros. At the end of the story, the self-destruct mechanism of Davros' life-support chair explodes after he is attacked by the Mechanoids, destroying an entire human colony. It is not clear how Davros survives to become the Dalek Emperor as seen in "Remembrance". However, in the DVD, the Davros Connections, director Gary Russell points out that the explosion of Davros' life-support chair leaves the listener to believe there is little of Davros left. This fits chronologically the fact that "Remembrance" depicts Davros as just a head inside the Emperor Dalek.