I always liked the storyline of Cobra Commander's most brilliant scheme. He tricked the Joe team into aggravating a faultline in the Gulf of Mexico. The resulting earthquakes caused a huge piece of land to be thrust up through the ocean's surface. Cobra's forces held the newly formed island against the Joes until Cobra lawyers in Washington had the island declared a sovereign nation. Cobra Island soon had all the benefits of an independent nation with its own airspace and three miles of free ocean, thanks to international law. Despite international regulations, a G.I. Joe Skystriker jet was sent to spy on Cobra Island from the air. On board the jet was
Ripcord. The pilot, Ace, was surprised when
Ripcord ejected from the plane to find his missing girlfriend Candy, who was thought to be on the island. In reality Candy was killed in the same car wreck that nearly killed Billy. As
Ripcord fought Zartan on the island, Storm Shadow and Snake-Eyes learned that Zartan was the Soft Master's killer. The two ninjas landed on the island, ready to avenge their teacher's death. In the chaos that ensued,
Ripcord was badly hurt by Zartan and Zartan took
Ripcord's place. A small team of Joes arrived on the island and "rescued" Zartan, who was posing as
Ripcord. Meanwhile,
Ripcord took Zartan's place in Springfield. Storm Shadow found Cobra Commander and asked him if he had ordered Zartan to kill the Soft Master. The commander blatantly lied to his former bodyguard: "He did it...to prove he could!" Storm Shadow was later shot and seemingly killed by the Baroness as he and Snake-Eyes tried to fight their way off the island.
Maybe that'll be the storyline.