He-Man and the Masters of the Universe (1983) - 1x47 - Trouble in Arcadia- Followmy.tv

Adam and Teela stumble upon the hidden city of Arcadia, where the women live in luxury while the men work in the underground mines as slaves. Adam is sent to the mines while Teela is accepted by the women- and it is up to her to prove the equality of the sexes and help the city's queen, Sumana, see the error of her ways. Beneath ground Adam is hoping to do the same- but things become more difficult for him when a group of miners take his sword, intending to burn it in the furnace...