The plot concerns a hijacking at London's Heathrow International Airport and the complications that occur trying to resolve the situation.

During negotiations, the hijackers, led by a man named Packer, demand a prisoner held by the UK, one Shafiq Nasoud.

There, a soldier disables his jeep by shooting the engine block, but he drives into a stone wall and is killed.

On the brink of paying a large bribe to the hijackers, he decides to pass off an imposter as Nasoud, simply to get the hostages released.

Gunfire is exchanged between hijackers and police, and meanwhile on the plane, Joanne Fender sets off a bomb, killing Packer and the flight crew, bringing an end to the incident.