The Golion team is building a soccer field for the children, and Seidô is using a large construction vehicle that's specially designed for the task. Later that night, Sincline and Honerva send a Mecha Beastman to infiltrate and take control of the machine. The machine promptly runs amok, damages the soccer field, and traps three children inside the vehicle. The Golion team must stop the machine and rescue the kids.