G.I. Joe: The Movie

While Cobra Commander and Serpentor accuse each other's stewardship of Cobra as the root cause of the organization's failures, a mysterious woman breaks into the Terrordrome. Cobra Commander leads the counter-attack, but in an attempt to rid himself of Serpentor, allows the intruder to escape. Reaching Serpentor, the intruder reveals herself as Pythona, who comes from a secret civilization known as Cobra-La. Pythona states that they were responsible for causing Doctor Mindbender to create Serpentor through dream manipulation. At her urging, Serpentor plans to capture G.I. Joe's newest weapon, the Broadcast Energy Transmitter (BET).