He-Man and the Masters of the Universe S01 E04 The Dragon Invasion

Skeletor and Beast Man steal a dragon's eggs and transport them into the court-yard of the Royal Palace. With their special growth enhancer, the dragons soon hatch and grow, attacking the Palace, and leaving the Heroic Warriors distracted trying to deal with the ever-growing dragons leaving Skeletor and his cronies free tackle Castle Grayskull...