Waverly and the other members of the Empyrean have been scattered, and their home ship destroyed. The mission to rescue their parents didn't go quite as planned, and now they're at an even greater disadvantage: trapped with their enemies on the New Horizon, trying to find a way to survive. Will Seth's health hold out long enough to help Waverly topple their enemy? And will Waverly find a way to unite her friends before the final battle? Nothing is certain and every second counts in this explosive and romantic finale.