For a year, people learn to live with the spheres without suffering any specific changes. Even with the alien-looking spheres floating all over the sky, the CSAT is what matters the most to seniors of Sungjin High School. When the exam is just around the corner, one of the spheres drops on a military camp for the first time, and more shocking news awaits them.

Starring:

Im Se Mi, Shin Hyun Soo, Ji Min Hyuk, Kim So Hee, Kim Min Chul, Moon Sang Min, Lee Yun, Lee Soon Won, Shin Myung Sung, Kim Ki Hae, Kwon Eun Bin, 13 more, Kim Soo Gyum, Kim Jung Ran, Shin Soo Hyun, Shin Hye Ji, Ahn Da Eun, Ahn Do Gyu, Yeo Joo Ha, Oh Se Eun, Woo Min Kyu, Yoon Jong Bin, Hong Sa Bin, Hwang Se In, Choi Moon Hee

Genre:

Drama, Thriller, Sci-Fi