On their mountain hike, Alex, Sarah, John, and Lisa stumbled upon an ancient-looking door. They hesitated and argued about whether to go through it or not. But curiosity got the better of them, and they stepped through. To their surprise, they found themselves in a medieval town square, surrounded by knights and wizards. They were led before a council, who questioned them about their presence. As they began to discover the secrets of the magic door, Alex, Sarah, John, and Lisa realized that their journey had just begun.