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.

The once peaceful city of Park Falls has been tainted by a series of gruesome murders and missing persons. Cynthia Ford, well known as the town crazy, comes forward to speak with retired police detective Derrick Peters one January afternoon. She claims to have information about the murders, but does she hold the key to unlocking the mystery or has she truly gone insane? To Derrick's disbelief she utters one word: Zombies. Unable to ignore Cynthia's information, though not sharing her beliefs, Derrick and others in the city explore the mystery as weeks turn to months and the death toll rises. Could Cynthia have been right?