The Rig Description:

The drama will be set on the Kinloch Bravo oil rig, stationed off the Scottish coast in the dangerous waters of the North Sea. When the crew is due to return to the mainland, a mysterious and all-enveloping fog rolls through and they find themselves cut off from all communication with the shore and the outside world. As the rig is hit by massive tremors, its upto the crew of the Endeavor to discover what's driving the unknown force. But a major accident forces them to ask questions about who they can really trust.