The tallest building in the world is on fire. You are there with 294 other guests... ...There's no way down. There's no way out. The finishing touches have just been made to the Glass Tower, a...

The tallest building in the world is on fire. You are there with 294 other guests... ...There's no way down. There's no way out. The finishing touches have just been made to the Glass Tower, a 138-story skyscraper in the heart of San Francisco. A huge celebratory gala, complete with VIP guests, has been planned to celebrate the dedication of what has been promoted as the world's tallest building. But the building's architect, Doug Roberts, suspects all is not right with the building. The contractors have used shoddy wiring, not the heavy-duty wiring he had specified. The overworked wiring develops short circuits, coincidentally enough during the height of the celebratory extravaganza; it isn't long before the Glass Tower becomes a huge towering inferno. The nearly 300 guests become trapped on the building's 135th floor, where the party takes place. Fire Chief Michael O'Hallorhan immediately devises a daring plan to rescue the trapped guests, but his efforts quickly become a battle against time and the panicked guests.