The group of environmentalists consists of two American journalists, an Italian photographer, and a local guide. Their mission is to expose the illegal dumping of toxic waste in the delta, which is causing immense harm to the ecosystem and the local population.
As they begin their investigation, they come across a number of locals who are suffering from radiation poisoning. They also discover that a giant crocodile is lurking in the waters, attacking and killing anyone who gets in its way.
The group tries to warn the corrupt local officials about the danger, but they are more interested in protecting their own interests than the safety of their citizens. The situation becomes more dire when one of the journalists is attacked by the crocodile and severely injured.
With time running out, the group must find a way to stop the toxic waste dumping and neutralize the crocodile before it's too late. They team up with a local fisherman, who is an expert in crocodile hunting, and set out to track down the beast.
The climax of the movie features a thrilling showdown between the humans and the crocodile, as they fight for survival in the dangerous delta. In the end, the environmentalists are able to expose the illegal dumping and the corrupt officials are brought to justice. The fate of the giant crocodile, however, is left unknown.