The Mystery of Anwat Gar is the 15th episode of the 2002 He-Man and the Masters of the Universe series.
The Sorceress tells Prince Adam and Man-At-Arms about a vision she had where Skeletor arises from the Ocean of Gnarl and takes over Eternia. She fears he may try to obtain the Legacy Stones, ancient artifacts of great power, hidden on the Island of Anwat Gar. Upon hearing this, Adam transforms and he and Man-At-Arms travel to the Island. While traveling there a huge wave knocks Man-At-Arms off his vehicle and He-man saves him. When they get to the island, a mysterious person is watching from afar. As they look for the stones they enter a hall with stone soldiers with huge shields lining the walls. Upon walking further, He-man steps on a pressure sensitive switch and causes all the stone soldiers to be thrust into the middle crushing anything between them. He-man and Man-At-Arms escape and eventually arrive to a building that looks like a Japanese Temple. Once there they again, are attacked by statues. He-man defeats one by throwing his sword at the statue and then kicking it through his chest. Man-At-Arms just uses his blaster to turn his statue to rubble.
The mysterious person now makes his presence known by creating a twister to land himself in front of the building. He introduces himself as Sy-Klone and states that he is there to protect the stones. He-man tries to explain about Skeletor but Sy-Klone won't hear of it and start hurling discs at them. He-man eventually puts an end to that so Sy-Klone uses his hands to create mini-cyclones, but is stopped when He-man punches him. He-man warns him to stop, but Sy-Klone rotates his upper body to create another twister and is again, stopped by He-man. The battle ends when Skeletor and Beast Man announce that they have the stones and Skeletor proceeds to use it to get the invincible Legacy Armor.