Skeleton Warriors - Season 1 Episode 7 Harmonic Divergence

As Baron Dark continues to invade villages and enslave humans in his weapons factory, the Legion of Light decides that one of their own has to shut down the factory from inside. Guardian volunteers for the dangerous task and goes undercover. But before he does he finishes developing a weapon of his own: one designed to destroy a Skeleton Warrior’s Heartstone in order to turn them back into humans.