Three years after Jerry and his students were hunted by the megalania, Max, Jerry, and Linda are still studying the creature, learning more and more about it every year. Now, however, a new threat looms. A flying creature from another era has been attacking villagers in a remote part of the mountains of New Guinea. Max and his team of researchers are asked to come to identify the creature, which seems to resemble the pterosaurs not seen since the age of the dinosaurs, and perhaps find a way to stop the attacks. They soon discover that the pterosaurs are not the only danger hidden in the mountains. Now the group must find a way to protect each other and the villagers from the one enemy they had not prepared for, themselves.