Riley isn't alone in saying she's afraid of the rain. After pollution increased the levels of sulfur and nitrogen in the air, her world has been plagued by acid storms. But when she meets Hunter, her life turns upside-down as she discovers that she has an impossible immunity to the acid. Now, she's being hunted for the ability she has no control over, and with Hunter, she leaves behind her home town and heads for the country's Capital, determined to escape over the border and into the unknown land beyond it. But the government has a tighter hold on it's citizens than expected. And it's keeping things from them. Before she knows it, the truth has appeared, and just when Riley thinks she has it all figured out, the secret that has been buried beneath it all is unearthed, and she begins to question everything - even herself. Riley knows she has to escape, but one question remains: Is she going to like what she finds on the other side?