El Oso is a big, dumb hairy thug. His name means the bear and that's pretty much all you need to know about him. Except for the fact that he lives on the outskirts of Miracle City in Calavera, the criminal capital of the world. (Calavera is so tough that its team mascot is a broken leg!) El Oso spends most of his time wreaking havoc in Miracle City, however, and what he lacks in brains he makes up for in tenacity and strength. No matter how many times El Tigre or White Pantera put El Oso behind bars, he manages to break out in time for dinner.