THE STINGERS part 4! Jem and The Holograms new drummer is incredible and everyone knows it—too bad she's a spy working for The Misfits! What secrets will she discover when let into the inner sanctum of JEM?! As both The Stingers and Holograms gear up for their Masquerade Ball performances, some stars that are not so happy to be put in the corner threaten to tear it all down. Meanwhile, Shana's new best friend in Milan may be turning into her best ENEMY?!