As the snowstorm consumes the abandoned university campus, Youngwon and Hohyun know they're running out of time. The once-bustling halls have turned into a frozen hell, overrun with the infected. With power gone and supplies running low, hope is fading fast. But when an escape plan leads them straight into the hands of a ruthless group of survivors, the danger escalates.

Desperation drives them to take a risky chance-a bike ride across the desolate campus to freedom. But the infected are hot on their trail, turning every moment into a deadly race.