Ryann dreams of traveling across the stars, but a career in space isn't an option for a girl who lives in a trailer park on the wrong side of town. Alexandria is a loner who spurns Ryann's offer of friendship, until a horrific accident leaves Alexandria with a broken arm. Ryann learns her secret: Alexandria's mother is an astronaut who volunteered for a one-way trip to the edge of the solar system. Every night Alexandria waits to catch radio signals from her mother. And it's up to Ryann to lift her onto the roof day after day... until the silence between them grows into friendship, and eventually something more.