It is some ninety days since the World was gripped by an outbreak of zombies; but in Britain they seem to have the problem solved. In the early days there was an awful lot of decapitation going on; but now the Government has introduced a wonderful drug therapy and treatment programme that has worked so well that the zombies are about to be reintroduced into society. But you shouldn't call them zombies anymore; they are Transient Incognizant Mortality Sufferers; and you should not call them Tim either.......on both counts the Government has spoken. The cost of the drug treatment is staggeringly high; and faced with paying back a huge debt that the NHS should not have to shoulder each and every Tim the length and breadth of the country are put to work in the newly reopened British collieries; which was probably why the Government embarked upon an ambitious coal-fired power station building scheme a while back; so that the UK would no longer be at the mercy of the French energy suppliers and the Russian coal oligarchs. But in west Wales something goes horribly wrong. A cave-in at Garden Pit means that the miner Tims overshoot their drugs threshold and they revert back to their former zombie selves........and when they eventually dig themselves out things start to turn very messy.