"The Kid Who Would Be King" is a fantasy adventure film that follows a young boy named Alex who discovers the legendary sword Excalibur. After pulling the sword from a stone, he learns that he is destined to become the next king and must unite his friends to face an ancient evil. As Morgana, a powerful sorceress, threatens the world, Alex and his friends embark on a quest to stop her. They learn valuable lessons about bravery, friendship, and leadership while navigating challenges that test their resolve and courage.