onan, Ai, Ran and The Detective Boys are 6 out of the 50 chosen kids to try a new virtual reality game. Conan and his friends enter London in the 1800 century. But soon after all the kids head into the game, Noah's Ark (A highly developed AI program) closes all exits to the game. Now the innocent game is a matter of life and death. If the kids don't finish the game, they're all going to die. One by one the kids "die" in the game, and soon Conan & co solve the puzzle to find out who can catch Jack The Ripper and save them al