Brian's world is about to be turned upside down...again. Charles Moon is back to play more of his evil games. As people disappear without a trace from South Toheeden, it's up to Brian and his friends to figure out why. But first, they must solve a riddle, travel through portals to far off places, and find an antidote serum to destroy Moon's evil inventions. Now, Moon seems to be focused on Brian, and Brian seems...