When the gift runs riot, Sarah Jane faces the battle of her life to save Luke.

When Luke has his first nightmare, he's haunted by a dark figure from his dreams. A strange entity is reaching out to the world, with terrible consequences for the whole human race. Luke faces life-changing events, and Bannerman Road will never be the same again.

With Luke, Clyde and Rani trapped in a bizarre dreamscape, Sarah Jane must fight alone. As the Nightmare Man grows stronger, only K-9 might hold the key. But can Luke summon the courage to face his adult life before the whole world is trapped in an endless nightmare?