When some criminals who have just stolen a car collide with a truck illegally carrying highly flammable waste through the Holland Tunnel, a huge explosion causes it to collapse at both ends and a fireball rips through leaving only a handful of people alive. They're a mixed bunch, a few criminals, an old couple, a younger couple with a daughter, a police man, a pretty young woman and a moutain climber.

Meanwhile Kit Latura a cab driver and former head of New York City's Emergency Medical Services is on hand outside to give advice on what to do, although no one will listen, and so decides to go in alone, and bring out any survivors, which he believes may be trapped. However the 'way in' isn't so easy and once in there, Kit has to find a way out, which looks to be an impossible task, with the river above slowly filling up the tunnel and a huge fire at one end using up what little oxygen they have down there.

Being a big fan of Stallone i am a little biased, but he is very good in this film as Kit Latura, and after seeing him as the hero in countless other films, its nice to see him as the hero of a disaster movie i.e without the guns etc, just brains and a will to keep the people he has come to save, alive at all costs. Amy Brenneman stars as the pretty woman that the hero 'falls for' while Viggo Mortensen (Aragorn in the Lord of the Rings movies) plays Roy Nord, a mountain climbing expert who tries to find everyone a way out himself.