Orpheus, a team of scientists, is on a mission to search for a renewable energy source in the depths of the Arctic Ocean. The last team to attempt this was killed under mysterious circumstances. But the Orpheus crew becomes very nervous when a salvage inspector unexpectedly accompanies their mission. What does he know about the lost crew? And who does he actually work for? In addition, work on the bottom of the ocean turns out to be life-threatening for all sorts of reasons.