In the year 2055, scientists discover something far worse than rising temperatures and rising seas—they discover massive sunspots that are producing unprecedented solar flares.

With little time to prepare for the storms, NASA recruits doctors Sophie Winston and Emanuel Rodriguez to help monitor the solar weather. At first, the duo believes they have been hired for a routine project. But when arriving at the Johnson Space Center they quickly realize they haven't been told everything about their mission. And as a massive storm races toward Earth, they begin to suspect that it isn't a natural event. Millions of miles away something is feeding the storms ...