Set between The Age of Steel and Army of Ghosts. The TARDIS lands in 22nd century Africa in the shadow of a dormant volcano. Agro-divisions are growing new food from the parched earth to help feed the world's hungry millions - but somewhere nearby, the Doctor and Rose have detected an alien signal. As a nightmarish force begins to rise from the depths of the dark volcanic tunnels, the Doctor realizes that an ancient trap has been sprung. . But who was it intended for? And what is the secret of the sinister statues that stand at the center of the volcano? Drawn into an age-old conflict, Rose and the Doctor will have to fight for their lives while the art of destruction is practiced by alien hands around them.