The world is changing. Gravity, a force everyone takes for granted, has begun to disappear. As a young journalist, Noah spends his days documenting the wondrous and terrifying shifts in the world around him. But Noah's life is changing, too. Falling in love and raising a rebellious daughter adds new meaning to life in this mysterious floating world. As he covers the invention of new sports, interviews experts, and even journeys into space, each experience shapes how Noah views the world and, in turn, his relationship with his family. And as his daughter grows older, Noah faces the challenge every parent dreads and dreams of: letting go.