The Morrisfield Misfits and the Sword of fate

The year is 1941. After Morrisfield Academy is attacked, students Sarah, Max, and Albert are given a book by their Professor and transported to a fantasy realm, before Morgan, an evil leader of a group of Nazis trying to find the Sword of Fate, finds them and the book. Once there, they meet a woman named, Analese, who takes them to meet a wizard named Marvin, who reveals the book contains the hilt of King Arthur's "Sword of Fate." Once reunited with the blade of the sword, it will give its owner the power to change their own fate and those that follow them. They travel back to New York and enlist the aid of renowned gangster, Umberto Anastasia, father of one of the children. They venture into the city's abandoned subways to find the Tomb of Fate with Morgan hot on their heels and finally catching them inside the crypt itself. After forcing the children to work the deadly puzzles of the Tomb, and killing his soldiers, Morgan reveals himself to be Morgana who fought Arthur. The children escape her clutches and go back to the fantasy world only to have Morgana follow them and chase them back to our world and the castle where Arthur is entombed and where they will make their last stand and finally unite the Sword of Fate with its fallen king.