PART 1: Oaka has lost her family forever and has only been left with a strange book given to her by her grandfather who disappeared without a trace. Now with only one lead and an ambition to reunite with her two best friends, she sets off to figure out the mysteries of the mountain. PART 2: Liz is devastated when the Great World Catastrophe happens and she feels at fault for it. However she is determined to figure out what really happened to the world and avenge her parent's deaths. Only to find that the answers were in the least likely of places. PART 3: Lilly doesn't remember who she is. She has no memories of her past and only has a single lead, a melody in her head that will never go away. It is only when she meets the mysterious Logan that her life finally started to make sense.