Walley Standiburb, a student at Webster elementary is the reigning champion of his Fort Knight club. He spends hours after school playing Fort Knight and eating all the snacks in the house. One day at school, through the help of a special guest trainer, he discovered the importance of health and fitness and how fun it could be.
Hating the idea of working out at first, Walley is inspired by a little healthy competition with his rival Donovan, to win the heart of his crush, Dalia.
The trainer leaves an impression on Walley and his friends and they decide that fitness is cooler than they thought.