Fan Casting Heroes of Olympus - The Lost Hero

Jason Grace wakes up with amnesia on a bus headed towards the Grand Canyon. He is sitting next to Piper McLean and Leo Valdez, who claim to be his girlfriend and best friend respectively. They explain that they, including the other kids on the bus, are from the Wilderness School, a school for delinquent or troublesome children where Piper had gotten sent to for allegedly stealing a BMW, although she claims that people "just give her things", and Leo by running away from his numerous foster homes.