Dr. Kaff (also known as Dr. Cops; 카프 박사 in Korean) is an evil scientist intent on world domination. He creates an army of giant robots to kidnap world‑class athletes and seize control of the globe. To counter this threat, Dr. Kim develops Robot Taekwon V. Kim Hoon, the eldest son of Dr. Kim and a taekwon‑do champion, pilots the robot either mechanically or by fusing his taekwon‑do movements with the machine’s power. Comic relief comes from Kim Hoon’s younger friend, elementary‑school student Kim Cheol.