Tiger, tiger, burning bright
In the forests of the night

Calcutta, 1926. The Doctor and his companions join an expedition to locate the fabled emerald tiger – a legendary marvel shrouded in myth and mystery. They must journey to an unexplored lost world filled with wonder and wickedness.

But at the centre of this terra incognita, something is stirring. Something with emerald eyes, diamond-sharp claws and a heart of darkness.