The Indonesian island of Sumatra is home to one of the most critically endangered animals on the planet: the Sumatran elephant. But the wholesale destruction of tropical forests has wiped out their natural habitat. Even National Parks, created to protect the few remaining elephants, tigers, and orangutans, are overrun with poachers. In a move to prevent their extinction, the World Wildlife Fund created a team of forest rangers who patrol on elephant back to intervene in conflicts between wild elephants and humans: conflicts that often end in death for one of the last remaining Sumatran elephants.