It's the band's debut at Club Ry Ri, but Sun Hi loses her voice and Corki is too afraid to go on without a disguise. Can the band pull it out of the fire?

Head cheerleader Valerie and her entourage befriend Corki, who instantly leaves Sun Hi and Jodi behind. Will Corki come around or is she lost to the cool kids?

The girls have to bunk with Valerie when a safety issue forces a scramble in dorm rooms. Will everyone survive such close quarters, and will Jared find out Corki's Masked Girl secret?