Following a particularly nasty holiday experience when he was but a child, the now fully grown, bitter and twisted master criminal and terrorist Number One plans a horrific attack on south Pembrokeshire; his perfectly formed plans hopefully culminating in an explosion so fierce that no living thing within a thirty mile radius would survive thanks to the massive fireball that would suck all of the available oxygen out of the air. To make things worse his plan actually works. There are a few hardy survivors as always happens in any holocaust scenario, even a localised one; all of them electing to set out on a walking expedition to Carmarthen and points east; lands they dearly hope have escaped the terrorist attack. But the after effects of the fireball are not the only thing that the survivors have to worry about. Disturbing new subcultures dressed entirely in leather, cavorting around the countryside on motorcycles converted to run on waste vegetable oil; bald aliens who might or might not be peace loving vegetarians and a heavily armed Polish contingent conspire to make matters much worse.