Flatte County got its name for a reason: it's flat as a pancake. So even though Johan and his little brother, Shawn, brought their mountain bikes to Grandpa's house, there's nowehre to do cool tricks. Except Crooked Hill. But Grandpa says there's a curse on Crooked Hill that makes riders wipe out. When a storm pops up over the prairie and Shawn is missing, will Jonah risk the ride of his life to save his little brother?