In a crowded London underground station, a small routine fire suddenly erupts into a deadly

inferno and kills 31 people.

Dozens more are injured.

A team of forensic experts searches for clues to the cause of the blaze and finds that

the fire seemed to defy the very laws of physics.

To unravel the cause of the mysterious fire, investigators would need to recreate a

starry train station inside a modern computer.

The sprawling London underground is the largest and oldest subway rail system in the world.

But on the evening of November 18, 1987, commuters are unaware that disaster lurks beneath

them.

At 7.30 p.m., a passenger at the Astaric Kings Cross station sees a flicker of flame

underneath a heavily varnished 50-year-old wooden escalator.

The London fire brigade is dispatched.

It seems to be a routine call.

And every day called to a final nest later, something we were receiving probably 20 or

30 times a month.

So it was no big deal.

Fire Captain Roger Kendall, one of the first to reach the scene, waits above ground for

a supervisor to report.

We were waiting for message to come back to say that we're all going home or we may need

a bit of equipment.

Trains continue to come and go, despite the minor commotion.

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