Mike Wooldridge presents a series asking whether the global target of halving world poverty by 2015 can be achieved and what living on a dollar a day really means. In Kaimosi in Western Kenya, Isaiah lives with his disabled wife and six grandchildren, making seven to ten dollars a month from growing tea. Their neighbours Francis and Christine are both able to work, growing and selling maize, mending bicycles and making bricks. Between them they make about two dollars a day.