Industrial development has accelerated out of all control, spawning dangerous new technologies and laying the planet to waste. While the inner cities collapse in guerilla warfare, a dark age of superstition dawns.

As destruction of the environment reaches the point of no return, multinational corporations and super-rich individuals unite in a last desperate effort - not to save humankind, but to buy themselves immortality in a poisoned world.

If Earth is to survive, somebody has to stop them.

From London to New York to Turkey, Ace follows the Doctor as he prepares, finally, to strike back.

ANDREW CARTMEL was script editor of the DOCTOR WHO television series from 1987 to 1989.

CAT'S CRADLE: WARHEAD is the second adventure in the Cat's Cradle series.