Overview
When mysterious alien spheres start invading the world, high school students are called upon to join the world's first war against extraterrestrial forces.
Cast
- Kim Ki-hae as Kim Chi-yeol
- Shin Myung-sung as Im Woo-taek
- Shin Hyun-soo as Lee Chun-ho
- Lim Se-mi as Park Eun-young
- Ahn Do-gyu as Guk Young-su
- Kim Min-chul as Doh Su-chul
- Kim Su-gyeom as Kwon Il-ha
- Ro Jong-hyun as Jang Young-hoon
- Woo Min-kyu as Kim Duk-joong
- Yeo Joo-ha as Kim You-jung