Sam’s grandfather vanished from his life the day Sam’s father was buried. Now, ten years later, Grandpa Max wants to make amends. He sends letters that lead Sam on a scavenger hunt. Sam follows his grandfather’s bizarre instructions even though he’s still not ready to forgive. Sam copes with his anger at his grandfather by climbing onto roofs and leaving his tag, a spray-painted symbol for the planet Aquarius. It doesn’t take long for Sam to learn that the way of the rebel has a price.