In 1999, teenage sisters Celeste and Eleanor survive a seismic, violent tragedy. The sisters compose and perform a song about their experience, making something lovely and cathartic out of a catastrophe - while also catapulting Celeste to stardom. By 2017, Celeste is a mother to a teenage daughter of her own and is struggling to navigate a career fraught with scandals when another act of terrifying violence demands her attention.
Dr. Steven Murphy is a renowned cardiovascular surgeon who presides over a spotless household with his wife and two children. Lurking at the margins of his idyllic suburban existence is Martin, a fatherless teen who insinuates himself into the doctor's life in gradually unsettling ways.
Bound by a shared destiny, a bright, optimistic teen bursting with scientific curiosity and a former boy-genius inventor jaded by disillusionment embark on a danger-filled mission to unearth the secrets of an enigmatic place somewhere in time and space that exists in their collective memory as Tomorrowland.