Ex-cop Berry Rydell has been hired by Colin Laney - who is hooked deep into the network of things - to go to San Francisco and act in such a way that he comes to the attention of a certain unspecified individual. This, Laney promises Rydell, could prove life-threatening. And now Rydell's been sent a package. Something that belonged to Laney, something that others with guns, blades and very bad attitudes want. And suddenly Rydell's running, trying get to the old Bridge, the shantytown where a man can get lost, be forgotten and wait for the end of the world - which is the other thing that Laney promised . . .