2021
S01E12 finale
A science fiction thriller that depicts all students across the country fighting against unidentified objects ahead of the CSAT and fighting for extra points.
The first vehicle gets attacked by a sphere and turned over. The soldier dies on the spot, and So-yeon gets badly injured. The students decide to leave the vehicle and find a shelter nearby. Soon, they find a construction site office where they can hide and rest. However, their peace doesn't last long. Meanwhile, Lieutenant Lee goes against the order and steals a vehicle to rescue the students.