Several years ago, the author was asked to counsel one university's male students on the truth of rape. Today, he and other men are taking that truth on the road--in a used RV. Their "One in Four" national tour will work to end rape on college campuses by presenting "The Men's Program" to college students nationwide. The program aims to educate college men about rape in such a way that they will develop a deeper understanding of rape, making it far less likely that they will commit such an act. This program has now been experienced by thousands of men nationwide, and substantial published research indicates that it is effective. Men who experience the program report a significantly lower acceptance of attitudes that condone rape. Their self-reported likelihood of raping also declines, as shown by lower mean scores on a scale designed to measure their likelihood of committing sexual assault. The men of One in Four hope that the tour will not only lead to attitude and behavior change among those who experience the program but also inspire men on each campus to start One in Four chapters that will continue for years to come. (Contains 3 notes.)