At Sugar Che's behest, Freez tracks down BB to accompany him on a mission to empower the young musical genius Mostart with the mystical power of the Thirteenth Note. Meanwhile, the evil Sonic Lord, Vox, teams up with Mya De Zya, the most powerful person in all of Los Bosmos, in order to break out of his prison, the Void of Silencia, with the help of the rock band Mantyz and their corrupted version of the Thirteenth Note.