Sarah Jane, Maria, Luke and Clyde discover the monstrous Slitheen are hiding in a school.

Sarah Jane, Maria, Luke and Clyde must save the Earth before the Slitheen switch off the sun.

Sarah Jane and her team encounter the Gorgon - a terrifying creature that turns its victims to stone.

Sinister nuns plan to unleash the Gorgon on the world.

Luke and Clyde enter Combat 3000, a game designed to train warriors, run by the sinister Kudlak.

Luke and Clyde have been kidnapped and drafted as soldiers in an endless intergalactic war.

Maria wakes one morning to discover Sarah Jane has disappeared - and she is the only person in the world who remembers her.

Maria is lost in time and a meteor heads for Earth - with no Sarah Jane to stop it.

A couple appear claiming to be Luke's real parents. Is it time for Sarah Jane to stop adventuring?

With her old enemies triumphant, it seems that Sarah Jane has finally been defeated.