First, an unexpected power surge leaves the brothers trapped in a virtual training program, facing digital versions of their most fearsome foes in "VR in Deep Trouble"! Next, a mysterious piece of tech transforms one of Krang's stone soldiers into a power ballad–belting rockstar, but how long will the change last? It's a hair metal adventure "For Those About to Rock"! Then Casey Jones gets superpowers, and he can't wait to up his crime-fighting game. But when Ralph and the others learn his powers come at a cost, can they convince "Super Casey" to give them up? And finally, when Baxter Stockman injects Splinter with microscopic mousers, Donny will have to shrink himself down to save his sensei in "Big Trouble in Master Splinter"!