Two minutes and seventeen seconds that changed the world

A scientific experiment begins, and as the button is pressed, the unexpected occurs: all seven billion people on Earth black out for more than two minutes. Millions die as planes fall from the sky, people tumble down staircases, and cars plow into each other. During that time, everyone's consciousness is catapulted more than twenty years into the future. At the end of those moments, when the world reawakens, all human life is transformed by foreknowledge.

Was that shocking revelation a peek at the real, unalterable future, or was it only one of many possible futures? What happens when a man tries to change it, like the doctor who has twenty years to try to prevent his own murder? How will the foreknowledge of a part of "then" affect the experience of the "now"?