Working on an oil rig in the North Sea has its frustrations, its problems, and its dangers. In July of 1988, employees on the Piper Alpha platform were looking forward to having to work around construction as problem areas in the rig were updated - paint to be applied, sprinkler heads to be unclogged, and a broken safety valve to be fixed and replaced. In the end, a series of lapses and mistakes would lead to the deadliest oil rig disaster in history.