16 years ago, Waverly and Kieran were the first children born in space. Now a perfect couple, they are the pride and joy of the whole spaceship.

They represent the future.

The ship is their entire world.

They have never seen a stranger before.

Old Earth is crumbling, and the crew is hoping to reach (and colonise) New Earth within fifty years. Along with their allies on the second spaceship - who set off a year before them and whom they have never met.

One day, Kieran proposes to Waverly. That same morning, the 'allies' attack - and Kieran and Waverly are separated in the cruellest way possible. Will they ever see each other again?