This documentary examines various modern toilets, from the 18th-century toilet used in the British royal house (worth more than a worker’s annual salary) to the innovative aquarium toilet in Japan, where you can answer nature’s call surrounded by fish and a mock blue sea. According to investigations by the crews of sewage treatment facilities around the four rivers where the national projects are underway, the quality of the discharged water is abysmal. The hormone level – the leading cause of animal sex change and consequential extinction of species – was 11 times the normal level. The flush toilet is indeed a terrible invention that wastes what little water we have. It is the destroyer of our environment. But eco-friendly toilets are fighting back. There are those that use only 2.8L – the equivalent of 1.5 large water bottles – and some that do not use any water at all to turn excrement into manure. Also, some toilets are evolving and actually solving some environmental problem that had been a critical issue for a long time. There is no future for the Earth without improving upon the flush toilet. The inspiration is already in us. It is time to keep the philosophy of the traditional toilet in mind to start a small revolution inside your own bathroom. This documentary also looks at the efforts of people around the world to resolve the water shortage issue and secure their place in the new green market.