The documentary retraces the steps of Bruno Manser, a man from Switzerland who went to live with the indigenous tribe of the Penan in the Jungle of Borneo and endef up helping their struggle to defend their rainforest against greedy logging companies. The movie features original film, photo and voice recordings by Bruno Manser made in the 1980s, as well as new recordings showing how the life of the Penan has changed in just a few decades.

The Borneo Case is a unique story filmed over 25 years and tells the epic tale of how the rainforest, home of the last nomads was stripped of its natural resources. It reveals how billions of dollars of illegal profits solicited by the Chief Minister of Sarawak State in Malaysia were money laundered with the assistance of the largest global banks into offshore accounts and property portfolios all over the world. The case was labelled as the largest environmental crime of the century.