There is a god in the machine - and the god is insane.

Things are getting totally out of control in the self contained habit on Drams. There are Twenty million humans and aliens all at each other's throats and the Church of Adjudication is barely keeping control, only through their OBERON systems are the able to wield absolute power. And as we all know power corrupts, and absolute power...

Other things have been corrupted too. There are other problems too, Humans and Aliens are mutating into something that could consume their entire habitat.

Arriving in this disintegrating cosmopolitan society, Peri falls in with the charismatic leader of Human First, a movement dedicated to bringing order out of chaos. Meanwhile, the Doctor is powerless, imprisoned and put to the Inquisition by a church that really thinks its God is coming back.

If somebody doesn't do something, and do it soon, nobody's getting out alive.