Flint's group finds the Time Shifter Musey helping Wolfgang Amadeus Mozart and also meet a younger Beethoven who is struggling to master the art of music. Thanks to Super Ninja, Petra Fina gets control of Musey as Muscles-Master helps Flint to fight him. With advice from Sarah, Beethoven plays his music enough to free Musey. Once Musey is claimed by Flint, Old Timer notices Mozart and Beethoven in the same area and will fix that later.