In the summer of 1984, eleven-year-old Ruthie Linsky, living on Coney Island next to the Tempest Flyer, the legendary wooden roller coaster her grandfather built, discovers two secrets that could change everything.
First: The coaster and her home are being threatened by a powerful corporation that wants to tear them down and replace them with a casino.
Second: two decades earlier, a beloved ride operator mysteriously vanished without a trace.
Now Ruthie and her friends must fight to save the coaster they love, while uncovering the truth behind a disappearance that still haunts it.