There's a Penfold in My Suit Danger Mouse : Season 10 Episode 3

Penfold puts on Danger Mouse's suit and can't get out. From then on everyone thinks he is Danger Mouse. Later, DM and Penfold go to Bratislavakia to find out why all the countries of Central Europe have swapped places. There they fall fowl of a mystical stone that causes people to swap bodies.