Sarah Elton walks fields and farms on three continents, not only investigating the very real threats to our food, but also telling the little-known stories of the people who are working against time to create a new and hopeful future. By 2050, the world population is expected to reach nine billion, and the challenge of feeding this population, along with climate changes, will increasingly wreak havoc on the way we produce our food. Elton walks fields and farms on three continents, not only investigating the very real threats to our food, but also telling the little-known stories of the people who are working against time to create a new and hopeful future. Food might be the problem, but as Elton shows, it is also the solution.