Home quickly becomes a different place. Junie stays curled up in front of the TV; Nate's mom retreats inside herself; and the rumor of mental illness makes Nate a social pariah at school. Only the promise of winning the science fair holds any hope of happiness for Nate. He's building a cloud chamber, the project that he and his dad dreamed of working on together. Maybe if he can build it, Nate can give his father something that will help him feel better and finally come home.