Eleven-year-old Joe has never had a life outside of the hospital, with its beeping machines and view of London's rooftops. His condition means he's not allowed outside, not even for a moment, and his few visitors risk bringing life-threatening germs inside his bubble. Then a new nurse offers Joe the possibility of going outside. But Joe doesn't know if the nurse is serious--or whether he could survive the adventure.

Bubble is the touching story of how Joe spends his days, copes with his loneliness and frustration, and looks--with superhero-style bravery, curiosity, and hope--to a future without limits.