Setting out on a perilous expedition, marine biologist Skylar Shane & boat captain Jack Bowman head towards the unknown depths of the north Sumatran Sea in search of prehistoric life samples. Threat is rife as the pair encounter a dangerous band of smugglers accompanied by Tamal, a mysterious orphan child sold into servitude by an uncle rumoured to be a sorcerer & master of black magic. Around Tamal, curious & treacherous events begin to occur while the clouds & ocean swirl with jeopardy as an ancient creature stirs deep in the water. Skylar & Jack must face the ferocity & terror of this unfathomable beast as one by one, smugglers disappear & harrowing screams pierce the waves.