He-Man and the Masters of the Universe (2002) (2002)

S1E16 The Monster Within

In the midst of a clash with the Evil Warriors, Beast Man seizes control of Man-E-Faces' monstrous form, leaving the hero grappling with self-doubt. Meanwhile, at Snake Mountain, Skeletor schemes to dispatch He-Man by hiring two bounty hunters, Tuvar and Baddhra. The duo manages to locate He-Man in the treacherous Tar Swamp, where only Man-E-Faces has the power to rescue him. However, Man-E-Faces hesitates, unwilling to embrace his most formidable monster persona.