The Enemy of My Enemy G.I. Joe: Renegades : Season 1 Episode 11

Adam DeCobray hires James McCullen of M.A.R.S. Industries to work on a project to combine Dr. Mindbender's Bio-Vipers with his failed exo-armor suits. Meanwhile, the Joes infiltrate a Cobra stronghold after receiving information of DeCobray's plans from who they thought was Breaker's masked whistleblower. During the attempt, Mindbender reveals a deadly secret leading DeCobray to reveal himself as Cobra Commander. James McCullen becomes a "Destro" (estranged/alienated one) as he is forced to wear an iron mask as a symbol of his attempted betrayal and a mark of his servitiude to Cobra.