Before the Maze, before WICKED, before Thomas—sun flares scorched the earth, wiping out most of humanity. Mark and Trina were there when it happened. They survived.

But now, something far more sinister threatens what's left of the world. A deadly virus is spreading, turning people into bloodthirsty killers consumed by murderous rage.

Convinced there's a way to save those who remain, Mark and Trina set out on a perilous quest. In this new, devastated world, every life has a price. And to some, you're worth more dead than alive.

Can they find a cure before time runs out—or will they become the next victims of a world gone mad?