Anything can happen on Nim's Island, a magical place ruled by a young girlÂ’s imagination. It is an existence that mirrors that of her favorite literary character, Alex Rover--the worldÂ’s greatest adventurer. But Alexandra, the author of the Rover books, leads a reclusive life in the big city. When NimÂ’s father goes missing from their island, a twist of fate brings her together with Alexandra. Now, they must draw courage from their fictional hero, Alex Rover, and find strength in one another to conquer NimÂ’s Island.