The discovery of a mysterious fossil sets the stage for a terrifying confrontation between modern day man and Thai folklore in director Monthon Arayangkoon's monster-on-the-rampage flick. A tunnel excavation has revealed a rock so dense that it cannot be penetrated by even the strongest drill. When the workers discover a collection of unrecognizable fossils that bear no similarities to the familiar dinosaur types, they enlist the aid of archeologist Lenna Pierre and her American partner Tim in revealing the origins of the mysterious geological find. Awakened by the large scale excavation and enraged at having been trapped beneath the Bangkok concrete for hundreds of years, the ancient Garuda sets out on a bloody rampage as Leena, Tim, and the military struggle to find a means of bringing Garuda's destructive reign to terror to an end.