In turn, the Avatar is tasked with maintaining balance in the world, particularly between humans and spirits. Certain members of each nation have the ability to bend one of the four elements, and one individual known as the Avatar has the power to bend all of them. In the years since, the series has stood out as one of the century's fantasy greats.Īvatar takes place in a world comprised of four nations: the Earth Kingdom, the Fire Nation, the Water Tribes, and the Air Nomads. It's been over 15 years since 'Avatar: The Last Airbender' first premiered on Nickelodeon. Account icon An icon in the shape of a person's head and shoulders.