Deep beneath the English Channel on a Paris-bound express, a crack teams of East Europen terrorists has taken four hundread hostages at gunpoint - and declared war on a British government with more than its own fair share of secrets to keep.
One man stands in their way, Tom Buckingham, an off-duty SAS soldier, is on-board the train. He is the only chance the passengers and srew have of survival. With only a failing mobile to contact the outside world, he must use all his tradecraft and know-how to take out the enemy and secure the train.
But the odds are stacked against him - twelve battle-hardened tooled-up veterans of a bitter civil war to his one, unarmed and injured. And little does he kniw that someone on his own side is determined that no-one will get out of that tunnel alive...