The world watches in awe as the first commercial space shuttle is launched on its maiden voyage around the moon. Among the passengers on board are the Presidents wife and a very lucky lottery winner. But while en route, a massive solar flare sparks a cosmic-ray burst that accelerates the ship away from the Earths orbit. Now out of control, its hurtling straight for the sun. The danger becomes cataclysmic when its discovered that the event is triggering a much larger solar storm that could send the Earth back into the Stone Age. Now, preparing for the inevitable seems the lastand onlyterrifying option.