There's a new crimefighter in Springfield, who holds all that would menace the population to higher and stricter standards, who doles out discipline and dispenses punishment. He is known as the Penalizer and he has set his sights on Bart Simpson, and the rebel who roams the night known only as El Barto. Every hero could use a little help now and then, but will this new spandex-clad crimestopper turn out to be Bartman's friend or foe?