This article analyzes the theoretical principles of the recently legislated “three strikes and you're out” laws. In many respects, these are related to the “new penology” that shifted the focus of criminological and penological interest from the individual offender toward the control of aggregates. Furthermore, the analysis relates the three-strikes measures to the cultural model of the “McDonaldization” of society in which the principles of the fast-food restaurant dominate many aspects of American society. These principles include efficiency, calculability, predictability, and control mainly by non-human technology. The analysis in this article, which focuses especially on the three-strikes law in California, suggests that three-strikes laws can be viewed as a part of the McDonaldization trend.