"Halloween Castles" narrates the exciting adventures of Marta, Luis, and Sofia, three inseparable friends who discover a mysterious enchanted castle during Halloween night. Guided by friendly ghosts, they explore magical pumpkin gardens, join skeleton dances, and unravel the secrets of a dark tower. Their journey culminates with an unforgettable Halloween Party at the castle, where they are crowned as Kings and Queen of the night. Through these encounters, children not only experience magical adventures, but also make new friends and discover treasures and mysteries from the past.