Union of the Snake G.I. Joe: Renegades : Season 1 Episode 18

The Joes plan to crash a communications summit held by Baroness at the Cisarovna Chateau where they uncover a mind control scheme involving Cobra Industries' "Black Adder" invention. This cellular device can take control of their competition by cerebral manipulation using Doctor Mindbender's mind-control technology siphoned from Tomax and Xamot's psychic ability. However, the Joes soon discover that someone else has infiltrated the estate with an axe to grind against the Cisarovna family and their reign.