Answering a cry for help, the Doctor and Amy arrive on a misty colony world - but nobody thinks anything is wrong. Nobody, except for one young woman, hiding in shadows and scribbling in her.
On one of their annual jaunts, young Kazran Sardick and the Doctor find themselves in trouble when the TARDIS is tangled in the branches of a very strange, very large tree.
Dorium Maldovar has a problem. The self-styled 'Beacon People' are bad for business, and now they're in his shuttle park, digging for mysterious minerals.