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.
%20and%20Lee%20Cheong-San%20(Yoon%20Chan-Young)%20have%20been%20friends%20since%20they%20were%20children.%20They%20are%20two%20of%20the%20students%20trapped%20in%20a%20classroom%20and%20surrounded%20by%20flesh%20eating%20zombies.%20Meanwhile,%20the%20Korean%20military%20work%20to%20isolate%20the%20outbreak%20and%20protect%20the%20country%20from%20an%20even%20larger%20outbreak.)
