Yu-Gi-Oh! GX Episode 121: Desert Survival! Johann VS The Doodlebug
Episode 121 of 180 of Yu-Gi-Oh! GX, aired January 31, 2007, 25 minutes. Available with English subtitles and dub where released.
Episode summary
When Blair becomes ill, Jaden, Jesse, Axel, Jim, and Adrian search for medicine at a submarine spotted by Bastion, but their search is blocked by The Rock Spirit. Even though they escape and reach the sub they are sealed inside.