The Iranian Jaya region, covering most of the wester part of New Guinea, is one of the least explored areas on earth also because of the Indonesian government's bans. A group of explorers, including three Australians: Lincoln Hall a mountaineer, Geoff Hope a biologist, and two adventure lovers Sue Flaming, an Australian and Rini Sulaiman, an Indonesian, travel 100 km overland to the mountains where the Carsensz Pyramid rises over 5000 metres and is covered by permanent glaciers above the equatorial jungle. During the journey the expedition passes throuh several villages of the primitive Dani people, wildernesses, dense jungles, giant canyons and, higher up, snowfields and glaciers. After climbing the peakand enjoying the panoramic views full of surprises, they carry out geological surveys on the glacier, perhaps a relic of the last ice age. The careful photography of an exceptional camerman, Michael Dillon, records the whole adventure.