Their world is drowning.
Catastrophic rain has flooded Cat and Simon's once-beautiful valley, forcing them to abandon everything they love. But Cat has another purpose in leaving: to uncover what happened to her parents, Ben and Lila, who vanished in the Canadian mountains.
On the road, they encounter a man with a chilling claim: the endless epic storms aren't an act of nature. They are the result of something far more dangerous, and only with someone's help can he stop it.
In a race against time, their mission becomes one of family and survival against all odds.