Skyfall

While searching for Voldemort, Harry, Hermione and Ron receive a mysterious note to find a man with a blue box. After finding this man, they travel to America where all their questions are soon answered. Along the way, they meet a consulting detective and his blogger, three demigod campers, two brothers who are hunters, and a mad man with a box and his british companion. They join together to stop their worst nightmares before it's too late. What would you do when all hope is lost?