When the future casts shadows. The events on the rocky island of Canon Island had once again united the Knickerbocker gang. They felt this special bond stronger than ever, even though their adversary Hermes remained missing. Now, the Knickerbockers wanted to spend time together in New York. For the newly in love Lilo and Axel, as well as for Dominik and Poppi, it was supposed to be an unforgettable time. That was the plan. But just one day before the big reunion in New York, four opened doors changed everything. The first door was opened in New York and unleashed terror. The second door was opened near Graz and caused horror. The third door was opened in Vienna and was supposed to bring satisfaction. The fourth door was opened in San Diego and was meant to bring death.