With the defeat of the Triple Triad and the aftermath of their attack on Valcav, it's time for Nick and his classmates to start a new semester on Inferno Island with a show of solidarity and peace: a parade.But when a long-lost hero comes back with his army of robotic penguins to kill Nick's father, any hope for peace is thrown on its head. If that wasn't all, Carter Academy and its villainous students are about to unleash a diabolical plan unlike...