GC is desperate to see her favourite rock musician, Tone Def, play at the concert. But his fans also include The Maestro - an intergalactic bad guy who has his own plans for the concert. GC, Blaster and MEL track The Maestro to his space ship but are nearly done for when they get trapped in an elevator playing mall music. In the end, GC saves the day - and the galaxy, all thanks having remembered to practice her musical instrument.
—Anonymous