Being a lone young boy in the 'hood" is dangerous and unpleasant. This is what Max experiences when he fools a gang of local toughs who cornered him at school. The gang finds out that the key he gave them is of no value in committing a robbery, and they chase him through the streets of his neighborhood, bent on revenge. He tries to escape by slipping into the open door of an old warehouse, but they follow him there, too. While running from them through aisles filled with all kinds of stuff, he bumps into an old boom box. By doing that, he manages to release Kazaam, a genie who has been held captive for thousands of years. In order to stay free, Kazaam must give Max three wishes.

John Henry Irons designs weapons for the military. When his project to create weapons that harmlessly neutralize soldiers is sabotaged, he leaves in disgust. When he sees gangs are using his weapons on the street, he uses his brains and his Uncle Joe's junkyard know-how to fight back, becoming a real man of "steel."