Queen Mob's heir can only be one special person: the one to defeat Skull-Crusher's team! It's everyone against Trini and her hero! Meanwhile, a new Bubble City is in store for Trini and the others as they face a new nautical tyrant, and while seeing some of the worst cruelty the American Waste has to offer, Trini sees some unexpected behavior from Skull-Crusher, tying a bow on their shared origins.