After his father was kidnapped, Koji spent a brief time with Doctor Bridget, staying with her at (or near) the Los Bogus desert resort hotel. Together, the two visited Sherman Dam, a hydro-electric power dam near the Los Bogus resort. The dam was subsequently attacked by Scourge and the Commandos, causing the nearby city's power to go out. Koji and Bridget were trapped in the darkened dam control room throughout the duration of the assault.
The Autobots ultimately foiled Megatron's plot to blow up the dam, and all was well again. It is unknown how much longer Koji stayed with Dr. Bridget before returning home. Commandos