Series 1 - Whatever Happened to Sarah Jane?

WRITTEN BY: Gareth Roberts

ENEMY: The Trickster, Graske

SYNOPSIS:

One day, Sarah Jane Smith exists, the next, no-one in the world knows about her. Instead, Andrea Yates takes her place; but Maria Jackson knows that Andrea is working with something to remove Sarah from the space/time continuum; so when the Graske return, Maria must uncover the identity of 'The Trickster' if the human race is to survive.