When an alien ship falls from the sky, three five-year-old siblings—Aria, Bran, and Lio—survive the impossible… and are found alone on a quiet Florida back road.

Taken in by Daniel and Marlene Whitaker, the children learn language, family, and belonging—while carefully hiding gifts no human child should have. But beneath a nearby lake, their damaged ship is repairing itself… and their parents are still alive, waiting in stasis.

As the pull of the water grows stronger and the children's abilities begin to surface, the Whitakers face an unthinkable question: how do you protect the children you love from a truth that's been calling them home?