Children's sci-fi drama. The Doctor arrives to join the battle, but is he too late to save both Sarah Jane and the Earth itself?
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Children's sci-fi drama. The Doctor arrives to join the battle, but is he too late to save both Sarah Jane and the Earth itself?
CBBC is the BBC's multiplatform offering for 6-12 year olds bringing the very best drama, entertainment and factual programmes to its young viewers.
