When Oscar discovers a glowing moonstone in his grandmother's attic, he is transported to a magical world where the moon holds immense power. With the moonstone in his possession, Oscar gains extraordinary abilities—but also attracts dangerous forces determined to steal it. Joined by quirky companions, including a mischievous talking creature and a tiny warrior, Oscar embarks on an unforgettable adventure to protect the moonstone. Along the way, he uncovers the ancient connection between the moonstone and the world's magic. As Oscar learns about bravery, sacrifice, and the balance of power, he discovers that true magic lies within himself.