Directors Shelley Lee Davies and Or Shlomi examine the global struggle to eat a healthy, environmentally-sustainable diet. Backed by supporting evidence from scientists and health professionals, they present the theory that a heavily meat-based diet is not only detrimental to one's health, but to the planet as well. However, with some creative thinking and tips from some prominent chefs, they argue that it's possible to eat a healthy, primarily meat-free diet that is also kind to the earth.