sentences:  As Mr Smith's databanks begin to collapse, he loses his memories of his primary objective, which was originally to release other Xyloks from within the Earth, and Sarah Jane "reaffirms" Mr Smith that his objective is to save the Earth.Mr Smith shuts down, and the Moon returns to its regular orbit.In the episode's dénouement, Sarah Jane promises that when Mr Smith reboots, his new purpose will be "to safeguard the Earth", meaning he will resume his previous role in the series.