In sixth-grade, average may mean boring, but at least it also means avoiding freakdom. Henry is all kinds of average—that is before other people’s thoughts start popping into his head. He thinks he’s going crazy until he discovers he’s one of several kids with genetically modified abilities, including the school bully. How did they get tweaked? To unravel the mystery, Henry must face family betrayal, his parent’s abduction by a greedy scientist, and even becoming frenemies with the bully. Can the Tweaks use their new abilities to avoid being used as demo models for the corrupt Dr. Grey’s foreign military buyers?