Speed
Officer Jack Traven (Keanu Reeves) foils the plot of a bomber, and the next day as he gets a coffee, he witnesses a city bus blown to smithereens. Then he receives a call that another city bus has a bomb on it, and when it accelerates to fifty miles per hour, the bomb is armed. If it goes below fifty, the bomb will detonate. Suddenly he has to try to help the people on this other bus. Can he make it in time?
The first task is to find the bomb, and the bomber has determined that this game has certain rules. Of course one of those rules is finding the bus, and in a city the size of Los Angeles, being able to find a lone bus is a difficult task at best, so Jack has a bus number and is told where the bus is. Now he just needs to get to it. This he does.
Since he can’t get to the bus stop on time, he has to catch a lift by taking over a car and driving alongside like a maniac, and eventually jumping into the bus itself, but by then it’s too late. The bus has already hit fifty miles per hour and the bomb is armed. The game is on.