Plot Summary

The night after a meteor shower has fallen Sarah Jane finds an abandoned baby girl whom she calls Sky on her door-step. Sky is plainly not of this world as she blows all the electrics in the street. At the local power station a surge of electricity heralds the appearance of Sky's mother Miss Myers,anxious to claim her child for possibly less than maternal reasons. At the same time a metallic robot is also after Sky and as Sarah Jane and her friends witness the stand-off between the two parties at the power station Sky suddenly transforms from an infant into a little girl.