Unable to find Julie, Kevin is taken to Julie's house by Lubic, a detective investigating the disturbance created by Karg's team. Suspecting the Key is stolen, Lubic confiscates it from Kevin and leaves. Immediately afterward, Evil-Lyn captures and interrogates Kevin for the Key's location with a mind-control collar, before pursuing Lubic. Julie and the Eternians release Kevin from the collar before they go after Lubic and the Key. They arrive at Charlie's store, but Skeletor's forces catch up with them and a pitched battle ensues. Evil-Lyn recovers the Key and summons Skeletor to Earth. Skeletor's forces capture the Eternians, and Julie is mortally wounded by Skeletor's lightning blast, which simultaneously erases the memory storage of Gwildor's Key. He-Man surrenders to save his comrades and is returned to Eternia as Skeletor's slave. Skeletor attempts to torture He-Man into submission, to make his victory complete, but He-Man refuses to yield. The moment arrives for Skeletor to receive the power of the cosmos, and declaring himself the Master of the Universe, Skeletor uses his new powers to attempt to force He-Man to kneel. Back on Earth, Gwildor repairs the Cosmic Key and Kevin re-creates the tones necessary to create a gateway to Eternia. The group, including Lubic who attempts to arrest them, are transported to Castle Grayskull, where they begin battling Skeletor's forces. Resenting that Skeletor absorbed the power of the Universe without sharing it with her, Evil-Lyn deserts him along with the other henchmen. Skeletor accidentally frees He-Man, who reclaims the Sword of Grayskull, and they battle until He-Man shatters Skeletor's staff, removing his new powers and restoring him to his normal state. He-Man offers mercy, but Skeletor draws a concealed sword and attempts to kill He-Man; He-Man knocks Skeletor into a vast pit below. The freed Sorceress heals Julie and a portal is opened to send the Earthlings home. Hailed as a hero for his bravery, Lubic decides to remain on Eternia. Julie awakens on the morning of her parents' deaths by plane crash. She prevents them from taking the ill-fated flight by taking their keys, and runs outside to find Kevin. Kevin confirms that their experiences were real, producing a souvenir from Eternia: a small blue sphere containing a scene of He-Man in front of Castle Grayskull with his sword raised above his head. In a post-credits scene, Skeletor's head emerges from the water at the bottom of the pit,