Food fanatic Stefan Gates and his intrepid Gastronuts go on wild culinary adventures to discover the truth about how we eat, what we eat and where it comes from. Along the way they indulge in hare brained experiments, crazy cooking and eat the world's weirdest food. Stefan and the Gastonuts move into the murky world of food that is healthy and unhealthy. Do we really know what is good for us? And how do we test that? To find out, they blow up breakfast cereals, become contestants in a game show, and even try life as a sumo wrestler.