In this dimension, Ben Tennyson was mentored by Maltruant and Vilgax the Benevolent. Instead of using his Omnitrix to be a hero, Mad Ben established himself as a warlord and the tyrannical master over the remaining people in post-apocalyptic Bellwood, turned to a desert wasteland. Mad Ben enslaved his subjects and forced them to dig and work to the point of collapse in search of Maltruant's missing time key, and forced them to keep working even after Maltruant retrieved his time key and left. However, Mad Ben was defeated in a fight against Ben Prime and Ben 23, and was imprisoned by his freed former subjects for the crimes he'd committed against his world.