A high school becomes ground zero for a zombie virus outbreak. Trapped students must fight their way out or turn into one of the rabid infected.

A virus outbreak occurs at Hyosan High School. The infected quickly turn into human eating zombies. Students at the high school must now fight for their lives, while they look for a way out. Nam On-Jo (Park Ji-Hu) and Lee Cheong-San (Yoon Chan-Young) have been friends since they were children. They are two of the students trapped in a classroom and surrounded by flesh eating zombies. Meanwhile, the Korean military work to isolate the outbreak and protect the country from an even larger outbreak.—AsianWiki