Here's how PlayStation describes the game:
The Final Fantasy XIII saga comes to its monumental conclusion in Lightning Returns: Final Fantasy XIII.
In a dying world, Lightning will seek to save the souls of the many as she encounters familiar faces and new foes across all new lands. Deifier of fate, servant of the Goddess, and now Savior of humanity, Lightning will finally come to understand her true destiny. It all ends here.
Check out the launch trailer below: