Gamma Accidents #2: Creatures from the Deep

After the epic events of the Gamma Accidents' enrolment in Hero High, summer vacation seems like the perfect chance to relax.
But something strange is happening in Crashton. Sea creatures are leaving their natural habitat and flying around in the skies above this holiday hotspot.
Someone is obviously behind this. But who are they? And what exactly are their intentions?
Jack, Bella, Ethan, Ty and Caleb take it upon themselves to solve this bizarre mystery.
Of course, what's the fun in embarking on a new adventure without dragging along some superpowered friends to enjoy the ride?