Six months have passed since the end of the world, leaving a handful of survivors holed up in a Welsh manor with little to do but survive. They’ve made the best of things, planting food, drinking their way through the cellar’s wine and ale, and reminiscing about the way life used to be. But with supplies running thin, everything is about to change. The arrival of a stranger named Michael sheds new light on their circumstances. If the survivors can reach Cornwall, a few days' journey north, they will find a safe haven, called Bar None, quite possibly the last bar on earth!