Using a simple math equation, Jamie teaches the West Adams High students a practical lesson about the short term consequences of their unhealthy food choices. The message becomes far more emotional when Jamie invites a few guests suffering from the painful, long term effects of diabetes, heart disease and high blood pressure to share with students some unforgettable stories of their struggles. Meanwhile, Jamie helps a busy, devoted single father and his two young boys to open their eyes to their destructive daily cycle of eating fast food, and to rediscover the physical and emotional value of preparing and eating a home cooked meal together. Things really get ugly when Jamie learns first hand who was responsible for the decision to revoke his film permits and ban him from preparing food in any school across Los Angeles. He refuses to accept defeat and devises a plan to move his kitchen across the street from West Adams High, but will this be enough to make a real impact?

• Jamie Oliver