This land of fire and beauty is the most isolated island chain in the world. NOVA cameras uncover an extraordinary world far from the teeming tourist hotels, one filled with unique life forms, but also scarred by tragic extinction.

Tegan steers the TARDIS to the planet Manussa, without meaning to - but why? And is it a coincidence that the planet is about to celebrate the 500th anniversary of the expulsion of the insidious Mara?