Season 1
These three students try to hide their special abilities from other people, while their parents struggle to protect them from being used by other people.
Episodes
1. Senior Year
Ordinary high school student Bong-seok hides a secret.
2. Booyang: Family Support, Levitation
Mi-hyun hides Bong-seok's superpowers, but the mysterious incidents on social media make her anxious.
3. 1+1
The closer Bong-seok grows to Hui-soo, the more risk of exposure he draws
4. The Secret
Bong-seok's secret is exposed and Hui-soo walks him home. Frank searches for his third target.
5. Recall
Hui-soo assures Bong-seok that his secret is safe by revealing her own secret.
6. Bungaeman
Jeon Gye-do's past is revealed. The NIS finds out information about Frank.
7. The Stranger
Frank recalls his past as he eliminates his targets. After Frank's visit, Mi-hyun suppresses her son.
8. Black
In 1994, Mi-hyun is ordered by Deputy Director Min Yong-jun to get close to and learn about the thought process of black ops agent Kim Doo-sik.
9. Humanists
Doo-sik and Mi-hyun grow closer, and Doo-sik suggests that they deceive Min Yong-jun.
10. The Monster
Ju-won, who leads his gang with his monstrous abilities, is betrayed and becomes a fugitive.
11. Romanticist
Ji-hee gradually opens up to Ju-won.
12. Partners
Doo-sik shows up at Mi-hyun's apartment with a plan to escape Deputy Director Min for good.
13. Jang Ju-won
After the Black Team disbands, Ju-won is offered a mission by Deputy Director Min to revive the team.
14. The Idiot
Jae-man tries to save his wife with his strength and Ju-won is sent in to subdue him.
15. N.T.D.P.
Mi-hyun and Ju-won watch the auditorium video and head to Jeongwon High, while Gye-do discovers Jun-hwa.
16. The Man Between
With Mi-hyun's question, Il-hwan reminisces about his past.
17. Awakening
Jun-hwa attacks Hui-soo, and Bong-seok awakens his powers to save her.
18. South and North
Mi-hyun asks Deok-yoon where Doo-sik is, and he tells her what happened in the North.
19. Final Battle
The fight takes a new turn with the appearance of a new North Korean superbeing, Jae-seok.
20. Graduation Day
Parents and children fight to protect each other. Will this repeated war ever end?