On Halloween night, twins Leo and Luna discover that the moonlight holds a powerful secret-anything they wish for becomes real. What starts as playful fun with floating pumpkins and dancing skeletons soon spirals out of control when a mysterious figure named Mischief turns their wishes against them. As chaos spreads, the twins must learn to harness the magic of light and shadow to restore balance before the night ends. With the help of ancient guardians, they embark on a dangerous journey, facing dark forces, gathering elemental powers, and confronting an ancient evil known as Tenebris.