Sahara finally settles into her life with her family when she is given the chance to go back to the city which changed her forever. However, times have changed. Lithium City has stumbled across them and has taken it upon itself to restore Regona to its former glory. Yet, when Terrell shares his suspicions about the new city's intentions, Sahara realizes there is something going on beneath the surface that doesn't feel right. Mysterious disappearances are followed by a threat of a rebellion from the crews. Soon, Sahara can't help but wonder why it feels like Lithium City didn't exactly stumble across Regona by chance. The leader of the Falcons is willing to sit still...until it becomes personal. As Sahara and the Falcons race to save one of their own, and uncover a dark truth, they face a storm of unimaginable consequences. On top of it all, Sahara is about to find out that, sometimes, the people closest to you can be the most deceiving of them all. A Tempest is brewing; and it won't leave one stone unturned.