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It's the morning of July 7th, 2005, and the streets of London are busier than usual.

An hour ago, an incident involving the London Underground forced the evacuation of the entire

network. At this stage, no one's quite sure what's going on, but there are thousands of

frustrated commuters still spilling into the city's crowded sidewalks and then onto buses.

As the number 30, a bright red double-decker bus pulls up to Euston Station,

dozens get on. And once the doors close, the bus's driver, George, pulls away from the station,

steering back into traffic. As he focuses on driving the bus, George can't help but wonder what's

caused this morning's chaos. In the distance, he can hear sirens and some people on the streets

seem frightened. He's heard some chatter about explosions in the underground tunnels,

perhaps caused by problems with the power grid, but no one really knows for sure.

All anyone cares about now is getting places on time. So George tries to shut out the noise of

his crowded bus and concentrate on driving his passengers to their destinations safely and

efficiently. But only minutes into his journey, just as he drives past the headquarters of the

British Medical Association, George's world is torn apart. An explosion of the upper level of

number 30 blows the roof off the bus, sending twisted steel crashing into the street.

George is thrown forward by the force of the blast, but he's held safe by his seatbelt. Many of

his passengers, however, are not so fortunate. As he looks around disoriented and in pain, the veteran

driver sees blood everywhere on people's faces, on the remains of his bus, on the walls of nearby

buildings. As things slowly come into focus, George realizes people are screaming, calling for help

...