Labrador Jack delves into the history of the evolution of herbivores and carnivores, the bioengineering that created domesticated dogs like him, and the war that led to the society he and his friends live in today. Then, as the black market descends into chaos, red deer Louis encounters old comrades from his miserable childhood and Legoshi begs one to train him in combat. Plus, Bengal tiger Bill gets a big surprise when he cracks open an egg! For older teen audiences.