Future Fit was developed to provide a low cost, heart health education and fitness program that could be incorporated readily into existing after-school programs with minimal teacher training and nominal expenditures for equipment and supplies. Participants in the 12-week demonstration project were 55 third and fourth grade students enrolled in after-school programs at four sites, randomly assigned to experimental and control conditions. Results indicated significant knowledge gains and changes in knowledge, attitude, and behavior at home. These outcomes suggest health and fitness programming in the after-school setting can be an effective complement to the education provided within the school setting.