An enormous eye appears above Muscat. It does not attack or speak. It simply watches.

Then a declaration shakes the world:

THE EARTH IS NO LONGER YOURS.

Humanity discovers Avalor, a world of rival kingdoms, ancient powers, and civilizations far beyond Earth's own.

There, Prince Rion struggles to save his kingdom from collapse. But growing conflicts, both within and beyond its borders, end with his exile.

When Rion reaches Earth, the mystery surrounding the Tempest only deepens. As their influence spreads, humanity divides. Some see hope for a better future. Others fear losing control of their own world.

Has Rion come to save Earth?

Or is he a threat unlike anything humanity has ever known?