Overview: Africa. Where mankind, grilling, and civilization began. Today, we take you to this mysterious, multi-cultural continent, where complex flavors and grilling techniques show just how far we've evolved since a human ancestor called Homo erectus became the first animal to cook his dinner. For starters, a South African specialty-incendiary piri-piri chicken wings. Then a Cape Malay twist on shish kebab-sosaties-pork and lamb skewers perfumed with red wine, dried fruit, and curry. From Nairobi, our grand finale: Kenyan spit-roasted lamb with sweet sour mint glaze-a reminder of the once-long reach of the British Empire.