When Lord Woolcroft and his team break open the fabled Tomb of Artemis, sealed for thousands of years, they are astonished by what they find inside...

The Doctor and Amy have come to Smyrna in 1929 to investigate a mystery. The Doctor knows something very bad happened there: something caused a lot of people to die and an entire, magnificent Temple to be found and then immediately lost again.

But he doesn't know what is picking off the archaeologists one by one, or how it is connected to the terrifying howling in the night. And as he and Amy get closer to the terrible truth behind an ancient evil, he begins to wish he'd never found out.