The Secret in Vault 13

A sinister school where graduation means death...

A monstrous mystery lurking beneath a quiet London street...

A desperate plea for help delivered by – hang on... a potted plant?

The Doctor has been summoned. The galaxy is in terrible danger, and only a Time Lord can save it. But to do so, she must break in to an ancient vault on a remote and frozen world – from which nobody has ever returned alive...

Can the Doctor and her friends Yaz, Ryan and Graham uncover the shocking secret in Vault 13?