The world as we knew it has ended. Radiation has swept across the world, mutating and killing everything in the world. However, people still survive. In the southern reaches of the United States, a fledgling government called the LSM has risen. With the aid of the six Companies they strive to maker the state of Louisiana safe again. But in the town of Robeline, things are worse.

Eighteen years have passed since the events of Metal Storm. The Southlands, now known to the humans as Avalon, have come into a world that none knew even existed. While everyone enjoys the hard won peace, a dark shadow of an all but forgotten enemy begins to resurface. For the children of James, Lysa, Spyro, Cynder, Ignitus, and Thera, a war none have foreseen now looms over them.