While the G.I. Joe cartoon popularized many of the franchise's characters, it was the comic books by several publishers that ...

The leader of G.I. Joe, General Abernathy (or Hawk) is on the trail of the thieves: an evil organization called "Cobra". While Duke and Ripcord train to join the Joes, McCullen ("Destro") is ...

GI Joe: Cobra provides depth to Cobra's reactions and ... and opening doors that lead to other realms. This includes the Black Door, found in the Drowning Caves, that houses vicious demons.