"Seventeen-year-old Elise and her younger sister Wylla haven't spoken to one another in almost a year. Wylla refuses to forgive Elise for everything that happened last fall, but when they both win an all-expense paid trip to ten of the best amusement parks in the country to ride rollercoasters, Elise thinks it could be a way for them to finally reconnect. As the pair set off with a ragtag group of misfits, ... Elise hopes the hours of confinement in the back of a van might finally provide an opportunity to heal her relationship with Wylla. But Elise is struggling to recover from a trauma of her own, and Wylla has a secret that could derail Elise's plans"--