Whilst fighting Kraang Bots, Michelangelo is sucked into a vortex and thrown into the wonderful yet perilous land of Oz. Here he discovers new places and sees old faces, both friendly and others...not so friendly. With help from his 'new' friends, Mikey must find the Wizard of Oz to help him return to his real home...and just what is the 'Sacred Crimson Orb' everyone wants so much?