On an abandoned oil rig in the middle of the North Sea, Dr. Christine Hansen (Saskia Gould) is charged with the task of testing an experimental cleaning fluid which could revolutionise the oil industry. Hired to carry out the tests are Jacob Rasmussen (GW Stevens) and his crew of deconstruction engineers, but within hours one of them is missing under suspicious circumstances. Things go from bad to worse when an environmental activist and his associate seize control of the rig, holding everyone hostage. But very soon the oil workers and environmentalists will have to join forces in a battle for survival against a savage new life-form which has made its home on the rig. And this life-form is hungry.