Part two follows a team in South Africa who are trying to help rhino Thandi with a ground-breaking skin graft operation after poachers stole her horns. A giraffe has caught his leg in a snare and must be caught and anaesthetized in order to prevent his death. Rosemary the orangutan has micro-surgery in Borneo to try to restore her sight and give her back her freedom. At Lincoln Park Zoo in Chicago, viewers learn how human heart technology is being used to help our closest animal relatives, chimpanzees, prevent heart disease.