This project will improve women’s health outcomes by stopping domestic violence (DV) before it starts. Leveraging behavioral tools, the program engages young, at-risk adolescent boys, ages 11 to 14 years old, from poor districts in Barranquilla, Colombia. Through workshops and youth-driven media campaigns, the boys will learn about DV prevention and become advocates for change. Participants will undertake a month-long series of play-based workshops on relevant themes, including power, oppression and the effects of gender expectations. The project will enlist older adolescent volunteers to help lead the workshops and create positive role models for the boys. The campaigns will be designed by the students with the help of the volunteers, and will be disseminated to each participant’s online social circle. If this pilot program is successful, it could be scaled-up regionally by the Ministry for Women and Gender Equality in the Atlantic region of Colombia.