"SIGMA 6 is the code name for a new group of covert GI JOE operatives with highly specialized capabilities. They use innovative technology and gear designed exclusively for each of their missions. Working against them is the evil COBRA organization, whose goal is to take control of the world by sabotage, espionage and outright destruction. SIGMA 6 fights them at every turn and provides a swift solution to critical situations around the globe."
In 2005, G.I.Joe made the jump to the larger (approximately 8 inch) scale, replacing both 3 3/4 inch and 12 inch figures in retail stores. With the change, a new cartoon was released as well as a new comic book.
In 2007, the line continued, though without the "Sigma 6" name. "G.I. Joe" again took prominence, with three different subsets - Combat Squad, Commando and the return of the Adventure Team.